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        <BusinessCd>900099</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>72779</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
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        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>39558</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>39558</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>DISTRIB. FROM 501(C)(2) SUBSIDIAR</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>9206</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>9206</RelatedOrExemptFuncIncomeAmt>
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      <TotalProgramServiceRevenueAmt>121543</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>731674</TotalRevenueColumnAmt>
        <ExclusionAmt>731674</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>10064540</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
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        <OtherAmt>80961</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>155020</SecuritiesAmt>
        <OtherAmt>-80961</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>74059</TotalRevenueColumnAmt>
        <ExclusionAmt>74059</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>927276</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>121543</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>805733</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>256525</ProgramServicesAmt>
        <ManagementAndGeneralAmt>46641</ManagementAndGeneralAmt>
        <FundraisingAmt>7773</FundraisingAmt>
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        <TotalAmt>211687</TotalAmt>
        <ProgramServicesAmt>197361</ProgramServicesAmt>
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      <PensionPlanContributionsGrp>
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        <ManagementAndGeneralAmt>4961</ManagementAndGeneralAmt>
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      <OccupancyGrp>
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      <TravelGrp>
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        <FundraisingAmt>112</FundraisingAmt>
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      <ConferencesMeetingsGrp>
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        <ProgramServicesAmt>12874</ProgramServicesAmt>
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        <ProgramServicesAmt>777</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>PROJECT DEVELOPMENT COS</Desc>
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        <ProgramServicesAmt>55266</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>MEMBERSHIP &amp; EVENTS</Desc>
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        <ProgramServicesAmt>9400</ProgramServicesAmt>
        <ManagementAndGeneralAmt>775</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>PAYROLL PROCESSING &amp; 40</Desc>
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        <ProgramServicesAmt>3467</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5421</ManagementAndGeneralAmt>
        <FundraisingAmt>47</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>DUES &amp; SUBSCRIPTIONS</Desc>
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        <ProgramServicesAmt>4545</ProgramServicesAmt>
        <ManagementAndGeneralAmt>573</ManagementAndGeneralAmt>
        <FundraisingAmt>23</FundraisingAmt>
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        <ProgramServicesAmt>922855</ProgramServicesAmt>
        <ManagementAndGeneralAmt>329835</ManagementAndGeneralAmt>
        <FundraisingAmt>10134</FundraisingAmt>
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        <EOYAmt>41</EOYAmt>
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        <EOYAmt>3916763</EOYAmt>
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      <OthNotesLoansReceivableNetGrp>
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        <EOYAmt>16846</EOYAmt>
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        <EOYAmt>13614554</EOYAmt>
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        <EOYAmt>8201563</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>8597107</EOYAmt>
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        <EOYAmt>20872242</EOYAmt>
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        <EOYAmt>2018791</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
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        <EOYAmt>22891033</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>31488140</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-335548</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>26814</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <ConsolidatedBasisFinclStmtInd>X</ConsolidatedBasisFinclStmtInd>
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      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
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      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>29</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5330000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>5330029</TotalAmt>
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      <GrossReceiptsAdmissionsGrp>
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        <CurrentTaxYearMinus3YearsAmt>966474</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>20125185</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>419093</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>121543</CurrentTaxYearAmt>
        <TotalAmt>22418295</TotalAmt>
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      <Total509Grp>
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        <CurrentTaxYearMinus3YearsAmt>966503</CurrentTaxYearMinus3YearsAmt>
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        <CurrentTaxYearMinus1YearAmt>419093</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>121543</CurrentTaxYearAmt>
        <TotalAmt>27748324</TotalAmt>
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      <AmountsRcvdDsqlfyPersonGrp>
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      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
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      <GrossInvestmentIncome509Grp>
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        <CurrentTaxYearAmt>731674</CurrentTaxYearAmt>
        <TotalAmt>1041720</TotalAmt>
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      <InvestmentIncomeAndUBTIGrp>
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        <CurrentTaxYearMinus2YearsAmt>35944</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>273361</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>731674</CurrentTaxYearAmt>
        <TotalAmt>1041720</TotalAmt>
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      <TotalSupportCalendarYearGrp>
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        <CurrentTaxYearMinus3YearsAmt>966884</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>25491129</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>692454</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>853217</CurrentTaxYearAmt>
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      <PublicSupportPY509Pct>0.98820</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.03620</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.01180</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>22494</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>17281</DepreciationAmt>
        <BookValueAmt>5213</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>5213</TotalBookValueLandBuildingsAmt>
      <InvstProgramRelatedOrgGrp>
        <Desc>INVESTMENT IN HISTORIC CHARLES RIVER SPEEDWAY PROJECT</Desc>
        <BookValueAmt>7894961</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>INVESTMENT IN WORCESTER MEMORIAL AUDITORIUM</Desc>
        <BookValueAmt>395471</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>INVESTMENT IN RODMAN LANDMARK</Desc>
        <BookValueAmt>30000</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <TotalBookValueProgramRltdAmt>8320432</TotalBookValueProgramRltdAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>RETIREMENT CONTRIBUTION</Desc>
        <Amt>43609</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEPOSITS</Desc>
        <Amt>2500</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>LINE OF CREDIT BORROWING</Desc>
        <Amt>8000000</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>MINORITY INTEREST</Desc>
        <Amt>155454</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>8201563</TotalLiabilityAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <ClubDuesOrFeesInd>X</ClubDuesOrFeesInd>
      <WrittenPolicyRefTAndEExpnssInd>1</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>1</SubstantiationRequiredInd>
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>1</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>SEAN MCDONNELL</PersonNm>
        <TitleTxt>PRESIDENT/DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>255000</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>8230</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>15282</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>32426</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>310938</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>RICHARD WHITE</PersonNm>
        <TitleTxt>FORMER BUILDING MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>271170</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>743</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>271913</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>GYM MEMBERSHIP FEES</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>RICHARD WHITE WAS THE FORMER BUILDING MANAGER FOR OLD CITY HALL LANDMARK CORPORATION, A RELATED ORGANIZATION. HIS SEVERANCE PAYMENT WAS $271,740 IN CALENDAR YEAR 2018.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>MARIANA WEBB AND SEAN MCDONNELL HAVE A FAMILY RELATIONSHIP. MARIANA WEBB AND RUTH WEBB HAVE A FAMILY RELATIONSHIP. SEAN MCDONNELL AND RUTH WEBB HAVE A FAMILY RELATIONSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPANY FINANCE PERSONNEL AND THE PRESIDENT WORK WITH THE TAX ACCOUNTANTS TO PREPARE A DRAFT OF THE FORM 990. ONCE SATISFIED WITH THE DRAFT RETURN, IT IS CIRCULATED TO THE FULL BOARD FOR REVIEW. THE EXECUTIVE COMMITTEE OF THE BOARD IS AUTHORIZED BY THE FULL BOARD TO AFFIRMATIVELY SIGN OFF ON THE RETURN BEFORE IT IS SIGNED AND FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>A CONFLICT OF INTEREST POLICY CHECKLIST IS COMPLETED ANNUALLY BY ALL THE BOARD MEMBERS. IT IS REVIEWED BY MANAGEMENT AND STAFF AND FOLLOW-UP, IF ANY, IS ADDRESSED AS NEEDED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS IN PLACE A BOARD-APPROVED POLICY GOVERNING EXECUTIVE COMPENSATION. THERE WAS NO CHANGE TO THE COMPENSATION OF THE PRESIDENT IN THIS FISCAL YEAR AND NO REVIEW OF THE COMPENSATION PERFORMED IN FY19. THE PRESIDENT'S COMPENSATION IS REVIEWED PERIODICALLY BY A COMMITTEE OF INDEPENDENT BOARD MEMBERS AND THE PROCESS OF DETERMINING THE COMPENSATION INCLUDES SOME OR ALL OF THE FOLLOWING ACIVITY: ENGAGING IN OUTSIDE CONSULTANT TO ASSIST THE PERSONNEL COMMITTEE OF THE BOARD WITH REVIEW OF COMPENSATION, USE OF PUBLICALLY AVAILABLE DATA OF COMPARABLE ORGANIZATIONS AND COMPARABLE POSITIONS, REVIEWED OF PUBLISHED COMPENSATION STUDIES, AND REVIEW OF ANNUAL PERFORMANCE MEASURES. A WRITTEN REPORT IS REVIEWED WITH THE PRESIDENT AND THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S DOCUMENTS ARE MADE AVAILABLE UPON WRITTEN REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER CONTRACT SERVICES: PROGRAM SERVICE EXPENSES 132,308. MANAGEMENT AND GENERAL EXPENSES 110,179. FUNDRAISING EXPENSES 58. TOTAL EXPENSES 242,545.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>OVERSIGHT OF AUDIT &amp; SELECTION OF INDEPENDENT ACCOUNTANT THE FULL BOARD APPROVES THE SELECTION FOR THE INDEPENDENT ACCOUNTANT AND THE EXECUTIVE COMMITTEE AND MANAGEMENT ASSUME RESPONSIBILITY FOR OVERSIGHT. THIS PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 16B</FormAndLineReferenceDesc>
        <ExplanationTxt>JOINT VENTURE POLICY MANAGEMENT AND BOARD OF THE ORGANIZATION HAVE A DRAFT POLICY WRITTEN AND CONTINUE TO DISCUSS ISSUES SURROUNDING JOINT VENTURE PARTICIPATION WITH A NON-PROFIT, WITH REFERENCE TO BEST-PRACTICE, WRITTEN POLICIES AND DISCUSSIONS WITH LEGAL COUNSEL. IT INTENDS TO COMPLETE FULL IMPLEMENTATION OF THE WRITTEN POLICY PERTAINING TO JOINT VENTURE ARRANGEMENTS. HOWEVER, IN THE INTERIM, WHERE HISTORIC REAL ESTATE DEVELOPMENT CONDUCTED BY THE ORGANIZATION RELIES ON TAX INCENTIVES PROVIDED BY THE IRC, AND WHERE LEVERAGE PROVIDED BY FOR-PROFIT PARTICIPATION IN SUCH REAL ESTATE RE-DEVELOPMENT IS CRITICAL TO SUCCESS OF THE ORGANIZATION'S MISSION-BASED ACTIVITY, IT IS CAREFULLY CONSIDERING DOCUMENTS AND AGREEMENTS OF EACH POTENTIAL JOINT VENTURE TO INDIVIDUALLY ADDRESS AHF'S NON-PROFIT CONCERNS AS WELL AS A SPECIFIC PROJECT'S NEEDS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
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          <ZIPCd>02108</ZIPCd>
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      <IdDisregardedEntitiesGrp>
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          <BusinessNameLine1Txt>HCL DEVELOPER LLC</BusinessNameLine1Txt>
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        <EndOfYearAssetsAmt>0</EndOfYearAssetsAmt>
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          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
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      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>AHF DEVELOPER LLC</BusinessNameLine1Txt>
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          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
        </USAddress>
        <EIN>042400219</EIN>
        <PrimaryActivitiesTxt>TO HOLD INTEREST IN DEVELOPMENT AGREEMENTS</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
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        <EndOfYearAssetsAmt>0</EndOfYearAssetsAmt>
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          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
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      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>AHF HISTORIC PROPERTY MANAGER LLC</BusinessNameLine1Txt>
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          <ZIPCd>02108</ZIPCd>
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        <EIN>042400219</EIN>
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        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
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        <EndOfYearAssetsAmt>0</EndOfYearAssetsAmt>
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          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
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      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>AHF MASTER TENANT LLC</BusinessNameLine1Txt>
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          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
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        <EIN>042400219</EIN>
        <PrimaryActivitiesTxt>OWNERSHIP INTEREST IN A LLC</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
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        <EndOfYearAssetsAmt>0</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
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      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>SPEEDWAY ASSOCIATES LLC</BusinessNameLine1Txt>
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          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
        </USAddress>
        <EIN>811107203</EIN>
        <PrimaryActivitiesTxt>INVEST, IMPROVE &amp; REDEVELOP HISTORIC PROPERTY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <TotalIncomeAmt>0</TotalIncomeAmt>
        <EndOfYearAssetsAmt>0</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>HISTORIC SPEEDWAY MM LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
        </USAddress>
        <EIN>842811218</EIN>
        <PrimaryActivitiesTxt>SERVE AS MANAGING MEMBER FOR SYNDICATED REAL ESTATE LLC'S OF AHF</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <TotalIncomeAmt>0</TotalIncomeAmt>
        <EndOfYearAssetsAmt>5589000</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>OLD CITY HALL LANDMARK CORPORATION (DISSOLVED 32519)</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
        </USAddress>
        <EIN>042469122</EIN>
        <PrimaryActivitiesTxt>TITLE-HOLDING CORPORATION</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(2)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>N/A</PublicCharityStatusTxt>
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          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>RODMAN LANDMARK INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
        </USAddress>
        <EIN>043018253</EIN>
        <PrimaryActivitiesTxt>TITLE-HOLDING CORPORATION</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(2)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>N/A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>OLD CITY HALL LANDMARK CORP UNTIL DISSOLUTION &amp; THEN ARCH HERITAGE FND</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>AHF SUPPORT CORPORATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
        </USAddress>
        <EIN>842977264</EIN>
        <PrimaryActivitiesTxt>SERVE AS TAX-EXEMPT MEMBER FOR SYNDICATED REAL ESTATE ENTITIES FOR AHF</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 12A, I</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedOrgTxblPartnershipGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WILLIAM RODMAN ASSOCIATES LLP</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>320 NORWOOD PARK SOUTH</AddressLine1Txt>
          <CityNm>NORWOOD</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02062</ZIPCd>
        </USAddress>
        <EIN>043016075</EIN>
        <PrimaryActivitiesTxt>RENTAL OF REAL ESTATE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblPartnershipGrp>
      <IdRelatedOrgTxblPartnershipGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>SPEEDWAY LAND LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
        </USAddress>
        <EIN>833243890</EIN>
        <PrimaryActivitiesTxt>INVEST, IMPROVE &amp; REDEVELOP REAL PROPERTY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ARCHITECTURAL HERITAGE FOUNDATION</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <PredominantIncomeTypeTxt>NONE DURING FY19</PredominantIncomeTypeTxt>
        <ShareOfEOYAssetsAmt>1885793</ShareOfEOYAssetsAmt>
        <DisproportionateAllocationsInd>0</DisproportionateAllocationsInd>
        <GeneralOrManagingPartnerInd>1</GeneralOrManagingPartnerInd>
        <OwnershipPct>0.75000</OwnershipPct>
      </IdRelatedOrgTxblPartnershipGrp>
      <IdRelatedOrgTxblPartnershipGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>HISTORIC SPEEDWAY LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>45 SCHOOL STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02108</ZIPCd>
        </USAddress>
        <EIN>842798224</EIN>
        <PrimaryActivitiesTxt>INVEST, IMPROVE &amp; REDEVELOP REAL PROPERTY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
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      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>1</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>SPEEDWAY LAND LLC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>R</TransactionTypeTxt>
        <InvolvedAmt>196452</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ACCRUAL</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>AHF SUPPORT CORPORATION</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>R</TransactionTypeTxt>
        <InvolvedAmt>151000</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ACCRUAL</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, SCHEDULE R, PART V, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE WAS ONE TRANSACTION BETWEEN THE REPORTING ORGANIZATION, A 501(C)(3) PUBLIC CHARITY, AND ONE OF ITS EXEMPT NON-CHARITABLE RELATED ORGANIZATIONS, A 501(C)(2) TITLE-HOLDING CORPORATION. THIS TRANSACTION IS NOT REPORTED ON SCHEDULE R, PART V, LINE 2 BECAUSE IT WAS LESS THAN THE $50,000 REPORTING THRESHOLD.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>