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        <FormAndLineReferenceDesc>SCHEDULE D - PART II, QUESTION 9</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSERVATION EASEMENT: THE LAND OWNED BY THE SCHOOL IS INCLUDED IN THE SCHOOL'S BALANCE SHEET. THERE IS NO REVENUE AND MINIMAL EXPENSE ASSOCIATED WITH THE CONSERVATION EASEMENT, ACCORDINGLY, THERE IS NO FOOTNOTE DISCLOSURE REGARDING THE EASEMENT.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D - PART V, QUESTION 4</FormAndLineReferenceDesc>
        <ExplanationTxt>ENDOWMENT FUNDS: THE SCHOOL'S ENDOWMENT GENERATES A PREDICTABLE STREAM OF REVENUE THAT HELPS FUND ITS PROGRAMS, INCLUDING ITS FINANCIAL AID PROGRAM.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D - PART X, QUESTION 2</FormAndLineReferenceDesc>
        <ExplanationTxt>ASC 740 - INCOME TAXES: The School is subject to the provisions of the Financial Accounting Standards Board's Accounting Standards Codification Topic 740, "Income Taxes", as it relates to accounting and reporting for uncertainty in income taxes. The School pays unrelated business income tax relating to its rental activities; because the School has always recognized the liability related to this unrelated business income, and because of the School's general tax-exempt status, management believes ASC Topic 740 has not had, and is not expected to have, a material impact on the School's financial statements.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>RECONCILIATION OF REVENUE PER AUDITED FINANCIAL STATEMENTS WITH REVENUE PER RETURN - REVENUE: INCLUDED IN TAX RETURN BUT INCLUDED WITH EXPENSES WITHIN FINANCIAL STATEMENTS: COST OF GOODS SOLD ($ 26,746) Rental expense ($213,433) __________ Total ($240,179) ==========</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D - PART XI, QUESTION 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>RECONCILIATION OF REVENUE PER AUDITED FINANCIAL STATEMENT WITH REVENUE PER RETURN - REVENUE: INCLUDED IN AUDITED FINANCIAL STATEMENTS BUT NOT ON RETURN: ITEM NETTED WITH REVENUE IN FINANCIAL STATEMENTS: FINANCIAL AID: $6,964,108.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D - PART XII, QUESTION 2D</FormAndLineReferenceDesc>
        <ExplanationTxt>RECONCILIATION OF EXPENSES PER AUDITED FINANCIAL STATEMENTS WITH EXPENSES PER RETURN: EXPENSES INCLUDED IN AUDITED FINANCIAL STATEMENTS BUT NOT INCLUDED IN EXPENSES ON RETURN: COST OF GOODS SOLD $ 26,746 Rental expense $213,433 Bad debt expense $ 82,479 ________ Total $322,658 ========</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D - PART XII, QUESTION 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>RECONCILIATION OF EXPENSES PER AUDITED FINANCIAL STATEMENTS WITH EXPENSES PER RETURN - EXPENSES: INCLUDED IN TAX RETURN BUT NOT IN FINANCIALS STATEMENTS: ITEM NETTED WITH REVENUE IN FINANCIAL STATEMENTS: FINANCIAL AID: $6,964,108.</ExplanationTxt>
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        <PersonNm>PETER MCANDREW</PersonNm>
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        <DeferredCompensationFlngOrgAmt>81811</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>20120</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>424756</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ANNE E BURNS</PersonNm>
        <TitleTxt>DIRECTOR OF LOWER SCHOOL</TitleTxt>
        <BaseCompensationFilingOrgAmt>224183</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>23069</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>20120</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>267372</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>PHILIP J VARIANO</PersonNm>
        <TitleTxt>ASSOCIATE HEADMASTER</TitleTxt>
        <BaseCompensationFilingOrgAmt>209128</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>20724</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>21326</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>251178</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOHN P GANNON</PersonNm>
        <TitleTxt>DIRECTOR OF DEVELOPMENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>192711</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>19915</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>20120</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>232746</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ANDREW M KING</PersonNm>
        <TitleTxt>DIRECTOR OF UPPER SCHOOL</TitleTxt>
        <BaseCompensationFilingOrgAmt>166521</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>17187</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>21326</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>205034</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>STEVEN BILECA</PersonNm>
        <TitleTxt>ASSISTANT HEADMASTER</TitleTxt>
        <BaseCompensationFilingOrgAmt>154082</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12168</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>19669</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>185919</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CHRISTOPHER MCCOLL</PersonNm>
        <TitleTxt>DIRECTOR OF ADMISSIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>146247</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12168</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>19669</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>178084</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE J - PART I, LINES 1A AND 1B</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 ALSO PAYS FOR SPOUSAL TRAVEL WHILE THE HEAD OF SCHOOL REPRESENTS THE SCHOOL ON KEY INSTITUTIONAL TRAVEL OPPORTUNITIES. THE PROVISIONS FOR BOTH THE HOUSING REQUIREMENT AND SPOUSAL TRAVEL ARE CONTAINED IN THE EMPLOYMENT CONTRACT OF THE HEAD OF SCHOOL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J - PART I, Line 4b</FormAndLineReferenceDesc>
        <ExplanationTxt>The School contributes to supplemental nonqualified retirement plans for THE director of finance.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleK documentId="IRS990ScheduleK">
      <TaxExemptBondsIssuesGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <IssuerName>
          <BusinessNameLine1Txt>COUNTY OF WESTCHESTER INDUSTRIAL DEVELOP AGENCY</BusinessNameLine1Txt>
        </IssuerName>
        <BondIssuerEIN>521294265</BondIssuerEIN>
        <CUSIPNum>957368FMO</CUSIPNum>
        <BondIssuedDt>2004-01-02</BondIssuedDt>
        <IssuePriceAmt>16000000</IssuePriceAmt>
        <PurposeDesc>FINANCING RENOVATIONS</PurposeDesc>
        <DefeasedInd>false</DefeasedInd>
        <OnBehalfOfIssuerInd>false</OnBehalfOfIssuerInd>
        <PoolFinancingInd>false</PoolFinancingInd>
      </TaxExemptBondsIssuesGrp>
      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <RetiredAmt>12515000</RetiredAmt>
        <BondDefeasedAmt>0</BondDefeasedAmt>
        <TotalProceedsAmt>16000000</TotalProceedsAmt>
        <InReserveFundAmt>0</InReserveFundAmt>
        <CapitalizedInterestAmt>0</CapitalizedInterestAmt>
        <RefundingEscrowAmt>0</RefundingEscrowAmt>
        <IssuanceCostsFromProceedsAmt>714662</IssuanceCostsFromProceedsAmt>
        <CreditEnhancementAmt>274337</CreditEnhancementAmt>
        <WorkingCapitalExpendituresAmt>0</WorkingCapitalExpendituresAmt>
        <CapitalExpendituresAmt>15285739</CapitalExpendituresAmt>
        <OtherSpentProceedsAmt>0</OtherSpentProceedsAmt>
        <UnspentAmt>0</UnspentAmt>
        <CurrentRefundingInd>false</CurrentRefundingInd>
        <AdvanceRefundingInd>false</AdvanceRefundingInd>
        <FinalAllocationMadeInd>true</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>true</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>false</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>false</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>false</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>false</AnyResearchAgreementsInd>
        <PrivateBusUseByOthersPct>0</PrivateBusUseByOthersPct>
        <BondIssMeetPrvtSecPymtTestInd>false</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>false</ChangeInUseBondFinancedPropInd>
        <RemedialActionTakenInd>false</RemedialActionTakenInd>
        <ProcsNonqualifiedBondRemdtdInd>true</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <Form8038TFiledInd>false</Form8038TFiledInd>
        <RebateNotDueYetInd>false</RebateNotDueYetInd>
        <ExceptionToRebateInd>false</ExceptionToRebateInd>
        <NoRebateDueInd>true</NoRebateDueInd>
        <VariableRateIssueInd>true</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>false</HedgeIdentifiedInBksAndRecInd>
        <HedgeProviderName>
          <BusinessNameLine1Txt>0</BusinessNameLine1Txt>
        </HedgeProviderName>
        <GrossProceedsInvestedInGICInd>false</GrossProceedsInvestedInGICInd>
        <GICProviderName>
          <BusinessNameLine1Txt>0</BusinessNameLine1Txt>
        </GICProviderName>
        <GrossProceedsInvestedInd>false</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>false</WrittenProcToMonitorReqsInd>
      </TaxExemptBondsArbitrageGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>A</BondReferenceCd>
      </ProceduresCorrectiveActionGrp>
    </IRS990ScheduleK>
    <IRS990ScheduleL documentId="IRS990ScheduleL">
      <LoansBtwnOrgInterestedPrsnGrp>
        <PersonNm>JOHN C CANONI</PersonNm>
        <RelationshipWithOrgTxt>BOARD MEMBER</RelationshipWithOrgTxt>
        <LoanPurposeTxt>PARENT LOAN</LoanPurposeTxt>
        <LoanFromOrganizationInd>X</LoanFromOrganizationInd>
        <OriginalPrincipalAmt>7500</OriginalPrincipalAmt>
        <BalanceDueAmt>7446</BalanceDueAmt>
        <DefaultInd>false</DefaultInd>
        <BoardOrCommitteeApprovalInd>true</BoardOrCommitteeApprovalInd>
        <WrittenAgreementInd>true</WrittenAgreementInd>
      </LoansBtwnOrgInterestedPrsnGrp>
      <TotalBalanceDueAmt>7446</TotalBalanceDueAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule L, Part II, Line 1</FormAndLineReferenceDesc>
        <ExplanationTxt>During fiscal-year 2018, a Trustee applied for and was approved for a Parent Loan. This loan program is offered to all Upper School parents and is not dependent on financial aid status.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleL>
    <IRS990ScheduleM documentId="IRS990ScheduleM">
      <WorksOfArtGrp />
      <ArtHistoricalTreasuresGrp />
      <ArtFractionalInterestGrp />
      <BooksAndPublicationsGrp />
      <ClothingAndHouseholdGoodsGrp />
      <CarsAndOtherVehiclesGrp />
      <BoatsAndPlanesGrp />
      <IntellectualPropertyGrp />
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>57</ContributionCnt>
        <NoncashContributionsRptF990Amt>643505</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <SecuritiesCloselyHeldStockGrp />
      <SecurPrtnrshpTrustIntrstsGrp />
      <SecuritiesMiscellaneousGrp />
      <QualifiedContribHistStructGrp />
      <QualifiedContribOtherGrp />
      <RealEstateResidentialGrp />
      <RealEstateCommercialGrp />
      <RealEstateOtherGrp />
      <CollectiblesGrp />
      <FoodInventoryGrp />
      <DrugsAndMedicalSuppliesGrp />
      <TaxidermyGrp />
      <HistoricalArtifactsGrp />
      <ScientificSpecimensGrp />
      <ArchaeologicalArtifactsGrp />
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>HOUSING PRJCT-MATERIALS</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>825000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>TICKETS-SPORTING &amp; OTHER EVENTS</Desc>
        <ContributionCnt>5</ContributionCnt>
        <NoncashContributionsRptF990Amt>13371</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>EqPMT/musical instruments</Desc>
        <ContributionCnt>9</ContributionCnt>
        <NoncashContributionsRptF990Amt>20724</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>FURNITURE</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>13900</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>COSTUMES</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>7896</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>true</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>true</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE M - PART I, Line 32b</FormAndLineReferenceDesc>
        <ExplanationTxt>The School uses TD Ameritrade to sell donated securities.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - Part VI, 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, 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 to review.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - Part VI, LINES 15A AND 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>Determining compensation: The Head OF SCHOOL sets compensation pools for all employees except for himself and the Director of Finance AND CAMPUS PLANNING. The Director of Finance AND CAMPUS PLANNING'S compensation is set by the Head OF SCHOOL, in consultation with the treasurer and chair of the finance committee. 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 by peer schools are used to determine this compensation. The HEAD OF SCHOOL and Director of Finance AND CAMPUS PLANNING have written employment contracts.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - PART VI, 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 X, LINES 27, 28, AND 29</FormAndLineReferenceDesc>
        <ExplanationTxt>DURING FISCAL-YEAR 2018, THE SCHOOL CHOSE TO EARLY ADOPT ACCOUNTING STANDARDS UPDATE ("asu") NO.2016-14, PRESENTATION OF FINANCIAL STATEMENTS OF NOT-FOR-PROFIT ENTITIES. ASU 2016-14 AMENDS THE FINANCIAL STATEMENT PRESENTATION OF THE NET ASSET CLASSIFICATION FROM THE PREVIOUS CATEGORIES OF "UNRESTRICED", "TEMPORARILY RESTRICTED", AND "PERMANENTLY RESTRICTED" TO THE NEW CATEGORIES OF "WITHOUT DONOR RESTRICTIONS"WITH DONOR RESTRICTIONS". AS A RESULT, THE SCHOOL'S JUNE 30, 2018 FINANCIAL STATEMENTS REFLECT ASU 2016-14'S PRESENTATION OF THE NET ASSET CLASSIFICATIONS AS "WITHOUT DONOR RESTRICTIONS"WITH DONOR RESTRICTIONS". AS NOTED BY THE IRS IN THE INSTRUCTIONS TO THE FORM 990, PART X OF THE FORM WILL CONTINUE TO UTILIZE THE PREVIOUS CLASSIFICATION, AND THE IRS ACKNOWLEDGES THAT THOSE WHO HAVE ADOPTED ASU 2016-14 WILL HAVE A DIFFERENT STRUCTURE WITHIN THEIR AUDITED FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - PART XI, LINE 9</FormAndLineReferenceDesc>
        <ExplanationTxt>RECONCILIATION OF NET ASSETS - OTHER CHANGES IN NET ASSETS CONSIST OF: Change in Post Retirement Benefits $ 542,986 LOSS ON UNCOLLECTIBLE PLEDGES $ (82,479) __________ TOTAL $ 460,507 ==========</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR">
      <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>509(A)(3)</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>true</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>false</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>false</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>