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        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>RACHEL MEARS</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>HANNAH E SAUJET</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JUMAANE SAUNDERS</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SY STERNBERG</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN R TORELL IV</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SARAH UNGER</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MAUREEN WRIGHT</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PAMELA GALLIN YABLON MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MICHAEL WIRTZ</PersonNm>
        <TitleTxt>HEAD OF SCHOOL</TitleTxt>
        <AverageHoursPerWeekRt>50.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>393822</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>49920</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PHILIP J VARIANO</PersonNm>
        <TitleTxt>ASSOCIATE HEAD OF SCHOOL</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>214278</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>51259</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PETER MCANDREW</PersonNm>
        <TitleTxt>DIRECTOR OF FINANCE</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>355477</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>58884</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LISA OBERSTEIN</PersonNm>
        <TitleTxt>DIRECTOR OF LOWER SCHOOL</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>167975</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>40674</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TERESA WEBER</PersonNm>
        <TitleTxt>DIRECTOR OF ADVANCEMENT</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>213813</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>40518</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN P GANNON</PersonNm>
        <TitleTxt>DIRECTOR OF DEVELOPMENT</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>206398</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>52602</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ANDREW M KING</PersonNm>
        <TitleTxt>DIRECTOR OF UPPER SCHOOL</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>183653</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>51259</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEVEN BILECA</PersonNm>
        <TitleTxt>ASSISTANT HEAD OF SCHOOL</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>173387</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>41761</OtherCompensationAmt>
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      <TotalReportableCompFromOrgAmt>1908803</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
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      <IndivRcvdGreaterThan100KCnt>76</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>1</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>PELLI ARCHITECTS INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>322 8TH AVENUE</AddressLine1Txt>
            <CityNm>NEW YORK</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10001</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>ARCHITECT</ServicesDesc>
        <CompensationAmt>1119539</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>VP BUSES LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>150 SOUTH MACQUESTEN PARKWAY</AddressLine1Txt>
            <CityNm>MT VERNON</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10550</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>TRANSPORTATION</ServicesDesc>
        <CompensationAmt>297496</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>LUCADAMO AND SON INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>P O BOX 204 BALDWIN PLACE</AddressLine1Txt>
            <CityNm>NEW YORK</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10505</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONSTRUCTION AND REPAIR</ServicesDesc>
        <CompensationAmt>250685</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>RECYCLED PAPER PRINTING INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>17 WITHCOMB STREET</AddressLine1Txt>
            <CityNm>WALTHAM</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02453</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PRINTING</ServicesDesc>
        <CompensationAmt>172184</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>DP WOLFF INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>143 BEDFORD ROAD</AddressLine1Txt>
            <CityNm>KATONAH</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10536</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>HVAC CONTRACTOR</ServicesDesc>
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      <CntrctRcvdGreaterThan100KCnt>7</CntrctRcvdGreaterThan100KCnt>
      <RelatedOrganizationsAmt>103797</RelatedOrganizationsAmt>
      <GovernmentGrantsAmt>524989</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>25278479</AllOtherContributionsAmt>
      <NoncashContributionsAmt>689612</NoncashContributionsAmt>
      <TotalContributionsAmt>25907265</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>TUITION AND FEES</Desc>
        <BusinessCd>611710</BusinessCd>
        <TotalRevenueColumnAmt>40639891</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>40639891</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>AUXILLARY ACTIVITIES</Desc>
        <BusinessCd>532000</BusinessCd>
        <TotalRevenueColumnAmt>979603</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>979603</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>41619494</TotalProgramServiceRevenueAmt>
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        <TotalRevenueColumnAmt>1987670</TotalRevenueColumnAmt>
        <ExclusionAmt>1987670</ExclusionAmt>
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      <GrossRentsGrp>
        <RealAmt>526953</RealAmt>
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      <LessRentalExpensesGrp>
        <RealAmt>103369</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>423584</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>423584</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>136135</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>287449</ExclusionAmt>
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      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>32452937</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>32285619</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>167318</SecuritiesAmt>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>167318</TotalRevenueColumnAmt>
        <ExclusionAmt>167318</ExclusionAmt>
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      <CostOfGoodsSoldAmt>19689</CostOfGoodsSoldAmt>
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        <TotalRevenueColumnAmt>-2488</TotalRevenueColumnAmt>
        <ExclusionAmt>-2488</ExclusionAmt>
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      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>70102843</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>41619494</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>136135</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2439949</ExclusionAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>7614044</ProgramServicesAmt>
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        <ProgramServicesAmt>961830</ProgramServicesAmt>
        <ManagementAndGeneralAmt>115822</ManagementAndGeneralAmt>
        <FundraisingAmt>46519</FundraisingAmt>
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        <ProgramServicesAmt>17722237</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2134079</ManagementAndGeneralAmt>
        <FundraisingAmt>857138</FundraisingAmt>
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        <ProgramServicesAmt>1496726</ProgramServicesAmt>
        <ManagementAndGeneralAmt>180233</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>3450458</ProgramServicesAmt>
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        <FundraisingAmt>166882</FundraisingAmt>
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        <ProgramServicesAmt>1349724</ProgramServicesAmt>
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        <FundraisingAmt>65280</FundraisingAmt>
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        <ManagementAndGeneralAmt>86001</ManagementAndGeneralAmt>
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      <FeesForSrvcInvstMgmntFeesGrp>
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        <ManagementAndGeneralAmt>160582</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>246117</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>241887</ProgramServicesAmt>
        <ManagementAndGeneralAmt>547189</ManagementAndGeneralAmt>
        <FundraisingAmt>12116</FundraisingAmt>
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        <ProgramServicesAmt>24221</ProgramServicesAmt>
        <ManagementAndGeneralAmt>28747</ManagementAndGeneralAmt>
        <FundraisingAmt>1211</FundraisingAmt>
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        <ProgramServicesAmt>3957564</ProgramServicesAmt>
        <ManagementAndGeneralAmt>791513</ManagementAndGeneralAmt>
        <FundraisingAmt>197878</FundraisingAmt>
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        <ProgramServicesAmt>348450</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8109</ManagementAndGeneralAmt>
        <FundraisingAmt>2884</FundraisingAmt>
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        <Desc>MAINTENANCE</Desc>
        <TotalAmt>2447515</TotalAmt>
        <ProgramServicesAmt>2372660</ProgramServicesAmt>
        <ManagementAndGeneralAmt>55214</ManagementAndGeneralAmt>
        <FundraisingAmt>19641</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>INSTRUCTIONAL SUPPLIES</Desc>
        <TotalAmt>2147562</TotalAmt>
        <ProgramServicesAmt>2140309</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5135</ManagementAndGeneralAmt>
        <FundraisingAmt>2118</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>OTHER EXPENSES</Desc>
        <TotalAmt>1666220</TotalAmt>
        <ProgramServicesAmt>183623</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1257025</ManagementAndGeneralAmt>
        <FundraisingAmt>225572</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>FOOD SERVICES</Desc>
        <TotalAmt>1644751</TotalAmt>
        <ProgramServicesAmt>1585530</ProgramServicesAmt>
        <ManagementAndGeneralAmt>46096</ManagementAndGeneralAmt>
        <FundraisingAmt>13125</FundraisingAmt>
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      <AllOtherExpensesGrp>
        <TotalAmt>1246881</TotalAmt>
        <ProgramServicesAmt>1215940</ProgramServicesAmt>
        <ManagementAndGeneralAmt>22823</ManagementAndGeneralAmt>
        <FundraisingAmt>8118</FundraisingAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>52618789</TotalAmt>
        <ProgramServicesAmt>44665203</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6262715</ManagementAndGeneralAmt>
        <FundraisingAmt>1690871</FundraisingAmt>
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      <CashNonInterestBearingGrp>
        <BOYAmt>516</BOYAmt>
        <EOYAmt>10500</EOYAmt>
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      <SavingsAndTempCashInvstGrp>
        <BOYAmt>8631503</BOYAmt>
        <EOYAmt>7742136</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>2180470</BOYAmt>
        <EOYAmt>17316346</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <BOYAmt>1219443</BOYAmt>
        <EOYAmt>1162006</EOYAmt>
      </AccountsReceivableGrp>
      <OthNotesLoansReceivableNetGrp>
        <BOYAmt>69766</BOYAmt>
        <EOYAmt>22850</EOYAmt>
      </OthNotesLoansReceivableNetGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>21844</BOYAmt>
        <EOYAmt>20027</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>488242</BOYAmt>
        <EOYAmt>530040</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>181072688</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>50480817</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>132121178</BOYAmt>
        <EOYAmt>130591871</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>95064855</BOYAmt>
        <EOYAmt>113048227</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>3326461</BOYAmt>
        <EOYAmt>3138440</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <OtherAssetsTotalGrp>
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      <SupplementalInformationDetail>
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        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>16466</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>24052</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>254331</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ANDREW M KING</PersonNm>
        <TitleTxt>DIRECTOR OF UPPER SCHOOL</TitleTxt>
        <BaseCompensationFilingOrgAmt>183653</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>18735</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>32524</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>234912</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>STEVEN BILECA</PersonNm>
        <TitleTxt>ASSISTANT HEAD OF SCHOOL</TitleTxt>
        <BaseCompensationFilingOrgAmt>173387</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13216</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>28545</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>215148</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LISA OBERSTEIN</PersonNm>
        <TitleTxt>DIRECTOR OF LOWER SCHOOL</TitleTxt>
        <BaseCompensationFilingOrgAmt>167975</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13220</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>27454</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>208649</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE HEAD OF SCHOOL IS REQUIRED TO LIVE ON CAMPUS, AS BOARDING STUDENTS RESIDE AT THE SCHOOL. SINCE THE HEAD OF SCHOOL'S HOME SERVES AS HIS PERMANENT RESIDENCE, PERSONAL USE OF THE HOME DOES OCCUR. THE SCHOOL PAYS FOR A CLEANING SERVICE FOR THE HOME, AS NEEDED. THE HOUSING REQUIREMENT PROVISION IS CONTAINED IN THE EMPLOYMENT CONTRACT OF THE HEAD OF SCHOOL. DURING THE CURRENT REPORTING PERIOD, THE SCHOOL DID NOT PROVIDE ANY FUNDS FOR COMPANION TRAVEL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCHOOL CONTRIBUTES TO A SUPPLEMENTAL NONQUALIFIED RETIREMENT PLAN FOR THE HEAD OF SCHOOL AND THE DIRECTOR OF FINANCE AND CAMPUS PLANNING.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleK documentId="RetDoc1053100001">
      <TaxExemptBondsIssuesGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <IssuerName>
          <BusinessNameLine1Txt>COUNTY OF WESTCHESTER INDUSTRIAL DEVELOPMENT AGENCY</BusinessNameLine1Txt>
        </IssuerName>
        <BondIssuerEIN>521294265</BondIssuerEIN>
        <CUSIPNum>957368FMO</CUSIPNum>
        <BondIssuedDt>2004-01-02</BondIssuedDt>
        <IssuePriceAmt>16000000</IssuePriceAmt>
        <PurposeDesc>FINANCING RENOVATION</PurposeDesc>
        <DefeasedInd>0</DefeasedInd>
        <OnBehalfOfIssuerInd>0</OnBehalfOfIssuerInd>
        <PoolFinancingInd>0</PoolFinancingInd>
      </TaxExemptBondsIssuesGrp>
      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <RetiredAmt>13460000</RetiredAmt>
        <TotalProceedsAmt>16000000</TotalProceedsAmt>
        <IssuanceCostsFromProceedsAmt>714662</IssuanceCostsFromProceedsAmt>
        <CreditEnhancementAmt>274337</CreditEnhancementAmt>
        <CapitalExpendituresAmt>15285739</CapitalExpendituresAmt>
        <RefundingTaxExemptBondsInd>0</RefundingTaxExemptBondsInd>
        <RefundingTaxableBondsInd>0</RefundingTaxableBondsInd>
        <FinalAllocationMadeInd>1</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>1</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>0</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>0</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>0</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>0</AnyResearchAgreementsInd>
        <BondIssMeetPrvtSecPymtTestInd>0</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>0</ChangeInUseBondFinancedPropInd>
        <ProcsNonqualifiedBondRemdtdInd>1</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <Form8038TFiledInd>0</Form8038TFiledInd>
        <RebateNotDueYetInd>0</RebateNotDueYetInd>
        <ExceptionToRebateInd>0</ExceptionToRebateInd>
        <NoRebateDueInd>1</NoRebateDueInd>
        <VariableRateIssueInd>1</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>0</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>0</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>0</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>0</WrittenProcToMonitorReqsInd>
      </TaxExemptBondsArbitrageGrp>
    </IRS990ScheduleK>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>54</ContributionCnt>
        <NoncashContributionsRptF990Amt>668083</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <FoodInventoryGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>575</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </FoodInventoryGrp>
      <DrugsAndMedicalSuppliesGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>2</ContributionCnt>
        <NoncashContributionsRptF990Amt>13318</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </DrugsAndMedicalSuppliesGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>MUSICAL INSTRUMENT</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>5000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>COMPUTER EQUIPMENT</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>2097</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>SPORTING EQUIPMENT</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>339</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>GIFT CARDS</Desc>
        <ContributionCnt>3</ContributionCnt>
        <NoncashContributionsRptF990Amt>200</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>1</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>1</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AMOUNTS NOTED IN COLUMN B REPRESENT THE TOTAL NUMBER OF CONTRIBUTIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 32B:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCHOOL USES TD AMERITRADE TO SELL DONATED SECURITIES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 REVIEW PROCESS: THE FORM 990 IS REVIEWED BY THE AUDIT COMMITTEE OF THE BOARD AND THEN PRESENTED TO THE FULL BOARD OF TRUSTEES FOR REVIEW AND APPROVAL, WITH COPIES BEING DISTRIBUTED IN ADVANCE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>CONFLICT-OF-INTEREST POLICY: THE CONFLICT-OF-INTEREST POLICY IS DISTRIBUTED ANNUALLY ALONG WITH A DECLARATION FORM TO KEY PERSONNEL AND ADMINISTRATORS, AS WELL AS ALL TRUSTEES. THE BUSINESS OFFICE COLLECTS ALL DECLARATION FORMS AND PREPARES A MEMO OF ALL KNOWN CONFLICTS FOR THE CHAIR OF THE AUDIT COMMITTEE, THE HEAD OF SCHOOL, AND THE PRESIDENT OF THE BOARD OF TRUSTEES TO REVIEW.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>DETERMINING COMPENSATION: THE HEAD OF SCHOOL SETS COMPENSATION POOLS FOR ALL EMPLOYEES. COMPENSATION IS BASED ON COMPARABLE DATA OBTAINED FROM PEER INSTITUTIONS AND AN ASSOCIATION OF INDEPENDENT SCHOOLS. THE HEAD OF SCHOOL'S COMPENSATION IS DETERMINED BY THE BOARD OF TRUSTEES' EXECUTIVE COMMITTEE. AN ASSESSMENT OF PERFORMANCE ALONG WITH COMPARABLE DATA PROVIDED FROM PEER SCHOOLS ARE USED TO DETERMINE THIS COMPENSATION. THE HEAD OF SCHOOL AND DIRECTOR OF FINANCE AND CAMPUS PLANNING HAVE WRITTEN EMPLOYMENT AGREEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS: THE SCHOOL'S GOVERNING DOCUMENTS, CONFLICT-OF-INTEREST POLICY AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>CHANGE IN POST RETIREMENT BENEFITS 614,302. INCREASE IN ALLOWANCE FOR DOUBTFUL PLEDGES -920,921.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>HACKLEY ALUMNI ENDOWMENT FUND</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>293 BENEDICT AVENUE</AddressLine1Txt>
          <CityNm>TARRYTOWN</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10591</ZIPCd>
        </USAddress>
        <EIN>136068876</EIN>
        <PrimaryActivitiesTxt>CHARITABLE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501 (C) (3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12A ; TYPE 1</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>1</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>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>HACKLEY ALUMNI ENDOWMENT FUND</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>C</TransactionTypeTxt>
        <InvolvedAmt>103797</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>FMV</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
