﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2024v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-04-30T13:18:49-05:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>582676261</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Rogers &amp; Company PLLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>8300 Boone Boulevard Suite 600</AddressLine1Txt>
        <CityNm>Vienna</CityNm>
        <StateAbbreviationCd>VA</StateAbbreviationCd>
        <ZIPCd>22182</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>520694646</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Alice Ferguson Foundation Inc</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ALIC</BusinessNameControlTxt>
      <PhoneNum>3012925665</PhoneNum>
      <USAddress>
        <AddressLine1Txt>2001 Bryan Point Road</AddressLine1Txt>
        <CityNm>Accokeek</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20607</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Theresa Cullen</PersonNm>
      <PersonTitleTxt>Executive Director</PersonTitleTxt>
      <PhoneNum>3012925665</PhoneNum>
      <SignatureDt>2025-04-26</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>Amanda E Waterhouse</PreparerPersonNm>
      <PTIN>P02014004</PTIN>
      <PhoneNum>7038930300</PhoneNum>
      <PreparationDt>2025-04-25</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="8">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>Theresa Cullen</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>2001 Bryan Point Road</AddressLine1Txt>
        <CityNm>Accokeek</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20607</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>2162970</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>https://www.fergusonfoundation.org/</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1954</FormationYr>
      <LegalDomicileStateCd>MD</LegalDomicileStateCd>
      <ActivityOrMissionDesc>Inspiring stewardship by giving people the tools to understand, appreciate, and protect nature.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>11</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>11</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>34</TotalEmployeeCnt>
      <TotalVolunteersCnt>414</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>1598543</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>1155921</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>219348</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>212710</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>76870</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>158527</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>-7812</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>147818</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>1886949</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>1674976</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>9995</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>1012659</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>1129595</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>40803</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>739607</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>781695</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>1762261</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>1911290</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>124688</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>-236314</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>11102344</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>10947107</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>96542</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>147135</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>11005802</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>10799972</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>The Alice Ferguson Foundation's mission is to inspire environmental stewardship by giving people the tools to understand, appreciate, and protect nature.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>572876</ExpenseAmt>
      <RevenueAmt>212710</RevenueAmt>
      <Desc>Hard Bargain Farm Education:Hard Bargain Farm Environmental Center's Education Program for PreK-12 students is designed to promote understanding and stewardship of the natural resources of the Potomac River Watershed. Courses at Hard Bargain Farm immerse students in various field studies based on Next Generation Science standards using innovative hands-on activities, field investigations and a focus on agriculture by interacting with farm animals and the sensory garden. This program also incorporates our Trash Free Potomac and Trash Free Schools programs giving students and community members opportunities and education focused on litter reduction and its impact on our watershed.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>408913</ExpenseAmt>
        <Desc>Bridging the Watershed: Bridging the Watershed is an outreach program of the Alice Ferguson Foundation, in partnership with the National Park Service and area school systems serving students and teachers in National Parks throughout the Washington, DC, Virginia and Maryland region. The purpose is to provide meaningful watershed educational experiences that connect students to their place in the natural world. This is accomplished by standards-based curriculum and field studies for students, teachers, and park rangers training.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <ExpenseAmt>397450</ExpenseAmt>
        <Desc>Farm and Facilities/ Capital Projects:In 2024, the campus infrastructure was renovated to current energy efficiency standards. Among this work included a new solar array and HVAC conversion.</Desc>
      </ProgSrvcAccomActy3Grp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>252437</ExpenseAmt>
        <Desc>Community Programs</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <TotalOtherProgSrvcExpenseAmt>252437</TotalOtherProgSrvcExpenseAmt>
      <TotalProgramServiceExpensesAmt>1631676</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc1039600001">0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd referenceDocumentId="RetDoc1039600001">1</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc1039600001">0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">1</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">1</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd referenceDocumentId="RetDoc1041300001">0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd referenceDocumentId="RetDoc1041300001">1</FundraisingActivitiesInd>
      <GamingActivitiesInd referenceDocumentId="RetDoc1041300001">0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd>0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="RetDoc1042400001">1</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>8</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>1</BackupWthldComplianceInd>
      <EmployeeCnt>34</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>1</QuidProQuoContributionsInd>
      <QuidProQuoContriDisclInd>1</QuidProQuoContriDisclInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>11</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>11</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>1</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>1</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>MD</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>Elizabeth Johnson</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>3012925665</PhoneNum>
        <USAddress>
          <AddressLine1Txt>2001 Bryan Point Road</AddressLine1Txt>
          <CityNm>Accokeek</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>20607</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>Stephen Kim</PersonNm>
        <TitleTxt>Board President</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Dan Jackson</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Michael Berger</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Ashlie Smith Sabeti</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Daniel Donohue</PersonNm>
        <TitleTxt>Member</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Kate Johnson</PersonNm>
        <TitleTxt>Member</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Brian Kane</PersonNm>
        <TitleTxt>Member</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Betsy Howes- Bean</PersonNm>
        <TitleTxt>Member</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Tanya Surtees</PersonNm>
        <TitleTxt>Member</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Joanne Aron</PersonNm>
        <TitleTxt>Member</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Tyler Wolverton</PersonNm>
        <TitleTxt>Member</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Theresa Cullen</PersonNm>
        <TitleTxt>Executive Director</TitleTxt>
        <AverageHoursPerWeekRt>40.79</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>152698</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>23405</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>152698</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>23405</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>1</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Celestial Solar Innovations</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>7925 Edgewood Farm Rd</AddressLine1Txt>
            <CityNm>Frederick</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>21702</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Solar Panel Replacement</ServicesDesc>
        <CompensationAmt>140588</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Protech HVAC LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>4515 Printers Ct</AddressLine1Txt>
            <CityNm>White Plains</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>20695</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>HVAC Replacement</ServicesDesc>
        <CompensationAmt>105511</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>2</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>1322</MembershipDuesAmt>
      <FundraisingAmt>27642</FundraisingAmt>
      <GovernmentGrantsAmt>795006</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>331951</AllOtherContributionsAmt>
      <NoncashContributionsAmt>12021</NoncashContributionsAmt>
      <TotalContributionsAmt>1155921</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Educational programs</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>212710</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>212710</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>212710</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>76363</TotalRevenueColumnAmt>
        <ExclusionAmt>76363</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossRentsGrp>
        <RealAmt>15439</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>0</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>15439</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>15439</TotalRevenueColumnAmt>
        <ExclusionAmt>15439</ExclusionAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>547622</SecuritiesAmt>
        <OtherAmt>1858</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>467316</SecuritiesAmt>
        <OtherAmt>0</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>80306</SecuritiesAmt>
        <OtherAmt>1858</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>82164</TotalRevenueColumnAmt>
        <ExclusionAmt>82164</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <FundraisingGrossIncomeAmt>10347</FundraisingGrossIncomeAmt>
      <ContriRptFundraisingEventAmt>27642</ContriRptFundraisingEventAmt>
      <FundraisingDirectExpensesAmt>20678</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>-10331</TotalRevenueColumnAmt>
        <ExclusionAmt>-10331</ExclusionAmt>
      </NetIncmFromFundraisingEvtGrp>
      <OtherRevenueMiscGrp>
        <Desc>Insurance Gain &amp; Rebat</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>142710</TotalRevenueColumnAmt>
        <ExclusionAmt>142710</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>142710</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>1674976</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>212710</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>306345</ExclusionAmt>
      </TotalRevenueGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>176103</TotalAmt>
        <ProgramServicesAmt>160147</ProgramServicesAmt>
        <ManagementAndGeneralAmt>14044</ManagementAndGeneralAmt>
        <FundraisingAmt>1912</FundraisingAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>818446</TotalAmt>
        <ProgramServicesAmt>744297</ProgramServicesAmt>
        <ManagementAndGeneralAmt>65265</ManagementAndGeneralAmt>
        <FundraisingAmt>8884</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>22092</TotalAmt>
        <ProgramServicesAmt>20646</ProgramServicesAmt>
        <ManagementAndGeneralAmt>636</ManagementAndGeneralAmt>
        <FundraisingAmt>810</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>34323</TotalAmt>
        <ProgramServicesAmt>32117</ProgramServicesAmt>
        <ManagementAndGeneralAmt>881</ManagementAndGeneralAmt>
        <FundraisingAmt>1325</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>78631</TotalAmt>
        <ProgramServicesAmt>73127</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3145</ManagementAndGeneralAmt>
        <FundraisingAmt>2359</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>54434</TotalAmt>
        <ManagementAndGeneralAmt>54434</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>27231</TotalAmt>
        <ManagementAndGeneralAmt>27231</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>94548</TotalAmt>
        <ProgramServicesAmt>90652</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3593</ManagementAndGeneralAmt>
        <FundraisingAmt>303</FundraisingAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>4486</TotalAmt>
        <ProgramServicesAmt>2680</ProgramServicesAmt>
        <FundraisingAmt>1806</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>185769</TotalAmt>
        <ProgramServicesAmt>159908</ProgramServicesAmt>
        <ManagementAndGeneralAmt>9562</ManagementAndGeneralAmt>
        <FundraisingAmt>16299</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>10402</TotalAmt>
        <ProgramServicesAmt>10402</ProgramServicesAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>33618</TotalAmt>
        <ProgramServicesAmt>32581</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1037</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>30132</TotalAmt>
        <ProgramServicesAmt>16507</ProgramServicesAmt>
        <ManagementAndGeneralAmt>13315</ManagementAndGeneralAmt>
        <FundraisingAmt>310</FundraisingAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>9984</TotalAmt>
        <ProgramServicesAmt>7924</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1995</ManagementAndGeneralAmt>
        <FundraisingAmt>65</FundraisingAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>118</TotalAmt>
        <ManagementAndGeneralAmt>118</ManagementAndGeneralAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>274394</TotalAmt>
        <ProgramServicesAmt>230491</ProgramServicesAmt>
        <ManagementAndGeneralAmt>38415</ManagementAndGeneralAmt>
        <FundraisingAmt>5488</FundraisingAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>52664</TotalAmt>
        <ProgramServicesAmt>48387</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3979</ManagementAndGeneralAmt>
        <FundraisingAmt>298</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Registration Fees</Desc>
        <TotalAmt>2743</TotalAmt>
        <ProgramServicesAmt>864</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1055</ManagementAndGeneralAmt>
        <FundraisingAmt>824</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Taxes and Licenses</Desc>
        <TotalAmt>1066</TotalAmt>
        <ProgramServicesAmt>946</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>120</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Miscellaneous Expenses</Desc>
        <TotalAmt>106</TotalAmt>
        <ManagementAndGeneralAmt>106</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>1911290</TotalAmt>
        <ProgramServicesAmt>1631676</ProgramServicesAmt>
        <ManagementAndGeneralAmt>238811</ManagementAndGeneralAmt>
        <FundraisingAmt>40803</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>612366</BOYAmt>
        <EOYAmt>370276</EOYAmt>
      </CashNonInterestBearingGrp>
      <AccountsReceivableGrp>
        <BOYAmt>7313</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </AccountsReceivableGrp>
      <LandBldgEquipCostOrOtherBssAmt>11087191</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>2821666</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>8310447</BOYAmt>
        <EOYAmt>8265525</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>2169112</BOYAmt>
        <EOYAmt>2308720</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <IntangibleAssetsGrp>
        <BOYAmt>3106</BOYAmt>
        <EOYAmt>2586</EOYAmt>
      </IntangibleAssetsGrp>
      <TotalAssetsGrp>
        <BOYAmt>11102344</BOYAmt>
        <EOYAmt>10947107</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>96542</BOYAmt>
        <EOYAmt>130372</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>16763</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>96542</BOYAmt>
        <EOYAmt>147135</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>10976120</BOYAmt>
        <EOYAmt>10703782</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>29682</BOYAmt>
        <EOYAmt>96190</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>11005802</BOYAmt>
        <EOYAmt>10799972</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>11102344</BOYAmt>
        <EOYAmt>10947107</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-236314</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>30484</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>1759545</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1837194</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1984089</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1598543</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1155921</CurrentTaxYearAmt>
        <TotalAmt>8335292</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>1759545</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1837194</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1984089</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1598543</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1155921</CurrentTaxYearAmt>
        <TotalAmt>8335292</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>421740</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>7913552</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>47778</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>70678</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>54407</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>82025</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>91802</CurrentTaxYearAmt>
        <TotalAmt>346690</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>74786</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>16863</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>24574</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5230</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>153057</CurrentTaxYearAmt>
        <TotalAmt>274510</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>8956492</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>650166</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.88360</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.92640</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Schedule A, Part II, Line 10, Explanation of Other Income:</FormAndLineReferenceDesc>
        <ExplanationTxt>Fundraising events - 2021 Amount: $ 12,400. 2022 Amount: $ 9,128. 2023 Amount: $ 5,230. 2024 Amount: $ 10,347. Other income - 2020 Amount: $ 74,786. 2021 Amount: $ 4,463. 2022 Amount: $ 15,446. 2024 Amount: $ 142,710.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleC documentId="RetDoc1039600001">
      <TotalGrassrootsLobbyingGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotalGrassrootsLobbyingGrp>
      <TotalDirectLobbyingGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotalDirectLobbyingGrp>
      <TotalLobbyingExpendGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotalLobbyingExpendGrp>
      <OtherExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>1904737</FilingOrganizationsTotalAmt>
      </OtherExemptPurposeExpendGrp>
      <TotalExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>1904737</FilingOrganizationsTotalAmt>
      </TotalExemptPurposeExpendGrp>
      <LobbyingNontaxableAmountGrp>
        <FilingOrganizationsTotalAmt>245237</FilingOrganizationsTotalAmt>
      </LobbyingNontaxableAmountGrp>
      <GrassrootsNontaxableGrp>
        <FilingOrganizationsTotalAmt>61309</FilingOrganizationsTotalAmt>
      </GrassrootsNontaxableGrp>
      <TotLbbyngGrassrootMnsNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyngGrassrootMnsNonTxGrp>
      <TotLbbyExpendMnsLbbyngNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyExpendMnsLbbyngNonTxGrp>
      <AvgLobbyingNontaxableAmountGrp>
        <CurrentYearMinus3Amt>269606</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>225527</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>237840</CurrentYearMinus1Amt>
        <CurrentYearAmt>245237</CurrentYearAmt>
        <TotalAmt>978210</TotalAmt>
      </AvgLobbyingNontaxableAmountGrp>
      <LobbyingCeilingAmt>1467315</LobbyingCeilingAmt>
      <AvgGrassrootsNontaxableGrp>
        <CurrentYearMinus3Amt>67401</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>56382</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>59460</CurrentYearMinus1Amt>
        <CurrentYearAmt>61309</CurrentYearAmt>
        <TotalAmt>244552</TotalAmt>
      </AvgGrassrootsNontaxableGrp>
      <GrassrootsCeilingAmt>366828</GrassrootsCeilingAmt>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <SolicitedAssetsSaleInd>0</SolicitedAssetsSaleInd>
      <LandGrp>
        <OtherCostOrOtherBasisAmt>58391</OtherCostOrOtherBasisAmt>
        <BookValueAmt>58391</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>10362709</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>2325806</DepreciationAmt>
        <BookValueAmt>8036903</BookValueAmt>
      </BuildingsGrp>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>176876</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>130189</DepreciationAmt>
        <BookValueAmt>46687</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>479790</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>363386</DepreciationAmt>
        <BookValueAmt>116404</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>9425</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>2285</DepreciationAmt>
        <BookValueAmt>7140</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>8265525</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1690679</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>30484</NetUnrealizedGainsInvstAmt>
      <DonatedServicesAndUseFcltsAmt>12450</DonatedServicesAndUseFcltsAmt>
      <RevenueNotReportedAmt>42934</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1647745</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>27231</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>27231</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>1674976</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>1896509</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>12450</DonatedServicesUseFcltsAmt>
      <ExpensesNotReportedAmt>12450</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1884059</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>27231</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>27231</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>1911290</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>Antique vehicle is provided for public display and preservation.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>Management has evaluated the Foundation's tax positions and concluded that the Foundation's financial statements do not include any uncertain tax positions.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <FundraisingEventInformationGrp>
        <Event1Nm>Pinot on the Potomac</Event1Nm>
        <GrossReceiptsEvent1Amt>37989</GrossReceiptsEvent1Amt>
        <CharitableContriEvent1Amt>27642</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>10347</GrossRevenueEvent1Amt>
        <NonCashPrizesEvent1Amt>6772</NonCashPrizesEvent1Amt>
        <RentFacilityCostsEvent1Amt>3381</RentFacilityCostsEvent1Amt>
        <FoodAndBeverageEvent1Amt>10108</FoodAndBeverageEvent1Amt>
        <OtherDirectExpensesEvent1Amt>417</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>37989</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>27642</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>10347</GrossRevenueTotalEventsAmt>
        <NonCashPrizesTotalEventsAmt>6772</NonCashPrizesTotalEventsAmt>
        <RentFcltyCostsTotalEventsAmt>3381</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>10108</FoodAndBeverageTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>417</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>20678</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>-10331</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Theresa Cullen</PersonNm>
        <TitleTxt>Executive Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>120198</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>32500</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>7760</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>15645</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>176103</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Statement of Program Service Accomplishments:</FormAndLineReferenceDesc>
        <ExplanationTxt>For over 70 years, the Alice Ferguson Foundation has been dedicated to inspiring environmental stewardship by equipping people with the tools to understand, appreciate, and protect nature. Through hands-on environmental education programs, we have reached hundreds of thousands of students across Maryland, Virginia, and Washington, DC. Located on a 330-acre property in Accokeek, Maryland, the Foundation's Hard Bargain Farm Environmental Campus offers a unique educational environment that connects students with the natural world. Our curriculum and outdoor education model provide immersive, STEM-focused, NGSS Standards based experiential learning. Our programs are designed to enhance student achievement in critical STEM subjects and align with the growing emphasis on environmental literacy as a requirement for student success. 2024 Impact: - Served 4,128 students through our day and overnight environmental education programs. - 1,852 students and community members participated in the Trash Free Potomac Watershed Initiative. - Hosted 540 children and community members through community events and summer camp day and overnight programs. - Delivered professional development workshops to 65 teachers.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Per the Bylaws, Alice Ferguson Foundation is a member organization with an Annual Meeting. Members must be 18 years of age or older to vote at the Annual Meeting and Special Meetings. Only members in good standing at the time of such meeting(s) shall be entitled to vote. All questions and elections shall be decided by majority of members present.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Members meet annually to elect the Board of Directors and Officers of the organization.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Foundation's Articles and Bylaws may be amended by a majority vote of the members of the Foundation at any annual or special meeting, provided that the proposed changes have been included in the notice of the meeting.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The 990 was reviewed by the Executive Director and Controller prior to filing. After review, Form 990 is distributed in its entirety to all board members prior to its filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Board members, the Executive Director, and the Deputy Executive Director annually complete an affirmation of disclosure and compliance with the conflicts of interest policy. In addition, the Board of Directors at least annually discusses any issues or potential issues and stresses the importance of compliance with the policy.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>After review of the Executive Director salary data from comparable organizations in the geographical area, the Executive Committee of the Board of Directors of the Alice Ferguson Foundation (President, Vice President, Secretary, and Treasurer) makes a recommendation on the salary to the board as a whole, which then acts on the recommendation.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Governing documents and form 990s are available to the public upon request and can be provided in electronic or paper format.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>