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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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        <PersonNm>TEREASA BRAINERD</PersonNm>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>HANNAH JANG-CONDELL</PersonNm>
        <TitleTxt>AT-LARGE TRUSTEE</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MICHAEL STRAUSS - TERM ENDED</PersonNm>
        <TitleTxt>PRIOR SENIOR VICE PRESIDENT</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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        <PersonNm>NANCY MORRISON - TERM ENDED</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KELLE CRUZ - TERM ENDED</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KEVIN B MARVEL</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JOEL PARRIOTT</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KELLY E CLARK</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ETHAN VISHNIAC</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JULIE STEFFEN</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ELIZABETH SCUDERI</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>RICK FIENBERG</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>TIM ALLEN</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>IOP PUBLISHING</BusinessNameLine1Txt>
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        <ContractorAddress>
          <ForeignAddress>
            <AddressLine1Txt>TEMPLE CIRCUS</AddressLine1Txt>
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            <ProvinceOrStateNm>BRISTOL</ProvinceOrStateNm>
            <CountryCd>UK</CountryCd>
            <ForeignPostalCd>BS1 6HG</ForeignPostalCd>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>LSC COMMUNICATIONS</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>STEPTOE &amp; JOHNSON LLP</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1330 CONNECTICUT AVENUE NW</AddressLine1Txt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
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        <ContractorAddress>
          <USAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>NORTHWESTERN UNIVERSITY</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
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          </USAddress>
        </ContractorAddress>
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      <MembershipDuesAmt>1113196</MembershipDuesAmt>
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        <Desc>MEETINGS</Desc>
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      <ProgramServiceRevenueGrp>
        <Desc>S&amp;T TOURS AND SALES</Desc>
        <BusinessCd>900099</BusinessCd>
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        <BusinessCd>900099</BusinessCd>
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        <ProgramServicesAmt>32960</ProgramServicesAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>247378</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>216749</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>31293</ProgramServicesAmt>
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        <ProgramServicesAmt>710696</ProgramServicesAmt>
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        <ProgramServicesAmt>168280</ProgramServicesAmt>
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        <ProgramServicesAmt>1576826</ProgramServicesAmt>
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        <ProgramServicesAmt>1129961</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>53346</ManagementAndGeneralAmt>
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        <EOYAmt>833661</EOYAmt>
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        <EOYAmt>16469</EOYAmt>
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        <EOYAmt>759333</EOYAmt>
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      <FSAuditedBasisGrp>
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      <AuditCommitteeInd>1</AuditCommitteeInd>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>PIERCE FUND</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
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        <RecipientCnt>1</RecipientCnt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>RODGER DOXSEY TRAVEL FUND</GrantTypeTxt>
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        <CashGrantAmt>4000</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>SUSAN NIEBUR GRANT</GrantTypeTxt>
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        <CashGrantAmt>250</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>UREY/KUIPER PRIZE</GrantTypeTxt>
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        <CashGrantAmt>2400</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>DPS SEGAN MEDAL PRIZE</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TOM METCALF FUND</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>ROSSI PRIZE</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>KAREN HARVEY FUND</GrantTypeTxt>
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        <CashGrantAmt>2000</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>RUSSELL PRIZE</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>4000</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
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      <GrantsOtherAsstToIndivInUSGrp>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>KAVLI PRIZE</GrantTypeTxt>
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        <CashGrantAmt>3000</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>WEBER PRIZE</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
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      <GrantsOtherAsstToIndivInUSGrp>
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        <GrantTypeTxt>HEAD STUDENT TRAVEL FUND</GrantTypeTxt>
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        <GrantTypeTxt>CHAMBLISS FUND</GrantTypeTxt>
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        <GrantTypeTxt>DOGGETT PRIZE</GrantTypeTxt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>VERA RUBIN PRIZE</GrantTypeTxt>
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        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>WHEN GRANTS ARE AWARDED, THE RECIPIENT SIGNS AN ACKNOWLEDGEMENT THAT THE FUNDS WILL BE SPENT ONLY FOR THE INTENDED PURPOSE. ALL RECEIPTS ARE COLLECTED AND REVIEWED TO ENSURE COMPLIANCE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AUDIT COMMITTEE AND THE TREASURER REVIEW AND APPROVE THE 990 PRIOR TO SUBMISSION. THE 990 IS ALSO DISTRIBUTED TO THE ENTIRE BOARD OF TRUSTEES AND PLACED ON THE AAS INTERNAL BOARD CONTENT MANAGEMENT SYSTEM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL DOCUMENTS ARE AVAILABLE FOR PUBLIC VIEWING AT THE EXECUTIVE OFFICE. ADDITIONALLY, SUMMARIES OF ANNUAL AUDITS AND FINANCIAL REPORTS ARE AVAILABLE ON THE WEBSITE AS PART OF THE ANNUAL REPORT. WE ARE CURRENTLY MODIFYING OUR PROCEDURES FOR ENSURING THAT THE CONFLICT OF INTEREST STATEMENTS CAN BE MONITORED. THE AUDIT COMMITTEE OVERSEES THE AUDIT OF THE ORGANIZATION'S FINANCIAL STATEMENTS AND SELECTION OF AN INDEPENDENT ACCOUNTANT.</ExplanationTxt>
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