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        <Desc>SUMMER CAMP PROGRAM -SUMMER AT TOWER HILL PROVIDES EXCITING ACADEMIC AND ENRICHMENT ACTIVITIES, PLUS A FULL RANGE OF ATHLETIC CAMPS IN DIFFERENT AGE GROUPS. DAY CAMP PROVIDES WEEKLY THEMES WITH SPECIAL GUESTS AND/OR FIELD TRIPS, SWIMMING OR WATER PLAY. ENRICHMENT CAMPS BROADEN CHILDREN'S ARTISTIC AND ACADEMIC HORIZONS IN NEW WAYS. SPORTS CAMPS ARE RUN BY TOWER HILL COACHES AND OUTSIDE PARTNER ORGANIZATIONS FOR BUDDING ATHLETES. SUMMER AT TOWER HILL ALSO INTRODUCES PROSPECTIVE STUDENT TO TOWER HILL'S EXPANSIVE FACILITIES.</Desc>
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        <PersonNm>HENRY MELLON</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CATHERINE L MILLER</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DAVID NOWLAND</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>LISA A OLSON</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>J MATHIEU PLUMB</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KEN SIMPLER</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ISBELLA SPEAKMAN TIMON</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>GENELLE TRADER</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CARMEN WALLACE</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>GINA WARD</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ELIZABETH SPEERS</PersonNm>
        <TitleTxt>HEAD OF SCHOOL (THRU 6/30/23)</TitleTxt>
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        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>40038</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ERIC NORMAN</PersonNm>
        <TitleTxt>CFO</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ANTHONY PISAPIA</PersonNm>
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        <OtherCompensationAmt>41243</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KRISTIN MUMFORD</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>39089</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>LINDSAY ACEVADO</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KAREN GRAHAM</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SARAH BAKER</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <ContractorCompensationGrp>
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          <BusinessName>
            <BusinessNameLine1Txt>SAGE DINING SERVICES INC</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1402 YORK ROAD</AddressLine1Txt>
            <CityNm>LUTHERVILLE</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>21093</ZIPCd>
          </USAddress>
        </ContractorAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FIRST CHOICE CLEANING SERVICES</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1722 NEWPORT GAP PIKE</AddressLine1Txt>
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            <StateAbbreviationCd>DE</StateAbbreviationCd>
            <ZIPCd>19808</ZIPCd>
          </USAddress>
        </ContractorAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>WILCOX LANDSCAPING</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 629</AddressLine1Txt>
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            <ZIPCd>19720</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>LANDSCAPING SERVICES &amp; SNOW REMOVAL</ServicesDesc>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BREAKWATER ACCOUNTING &amp; ADVISORY CORP</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 362</AddressLine1Txt>
            <CityNm>ROCKLAND</CityNm>
            <StateAbbreviationCd>DE</StateAbbreviationCd>
            <ZIPCd>19732</ZIPCd>
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      <CntrctRcvdGreaterThan100KCnt>4</CntrctRcvdGreaterThan100KCnt>
      <FundraisingAmt>25732</FundraisingAmt>
      <GovernmentGrantsAmt>3064030</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>2711507</AllOtherContributionsAmt>
      <NoncashContributionsAmt>357394</NoncashContributionsAmt>
      <TotalContributionsAmt>5801269</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>TUITION</Desc>
        <BusinessCd>611110</BusinessCd>
        <TotalRevenueColumnAmt>26134465</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>26134465</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>AUXILIARY REVENUE</Desc>
        <BusinessCd>611110</BusinessCd>
        <TotalRevenueColumnAmt>1089107</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1089107</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>FACILITIES RENTALS</Desc>
        <BusinessCd>611110</BusinessCd>
        <TotalRevenueColumnAmt>24223</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>24223</RelatedOrExemptFuncIncomeAmt>
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        <ExclusionAmt>1932483</ExclusionAmt>
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      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>10960319</SecuritiesAmt>
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      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>6201208</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>4759111</SecuritiesAmt>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>4759111</TotalRevenueColumnAmt>
        <ExclusionAmt>4759111</ExclusionAmt>
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      <FundraisingGrossIncomeAmt>32838</FundraisingGrossIncomeAmt>
      <ContriRptFundraisingEventAmt>25732</ContriRptFundraisingEventAmt>
      <FundraisingDirectExpensesAmt>32133</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>705</TotalRevenueColumnAmt>
        <ExclusionAmt>705</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>ANCILLARY INCOME</Desc>
        <BusinessCd>611110</BusinessCd>
        <TotalRevenueColumnAmt>196664</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>196664</RelatedOrExemptFuncIncomeAmt>
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      <OtherRevenueTotalAmt>196664</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>5613995</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>833976</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>9621117</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2116722</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>587097</ProgramServicesAmt>
        <ManagementAndGeneralAmt>103747</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>922629</ProgramServicesAmt>
        <ManagementAndGeneralAmt>272510</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>643435</ProgramServicesAmt>
        <ManagementAndGeneralAmt>182596</ManagementAndGeneralAmt>
        <FundraisingAmt>43475</FundraisingAmt>
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      <FeesForServicesLegalGrp>
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        <ManagementAndGeneralAmt>68045</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
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        <ManagementAndGeneralAmt>251968</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>1229269</ProgramServicesAmt>
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        <FundraisingAmt>44686</FundraisingAmt>
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        <ProgramServicesAmt>3910</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15680</ManagementAndGeneralAmt>
        <FundraisingAmt>148688</FundraisingAmt>
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        <ProgramServicesAmt>351345</ProgramServicesAmt>
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        <FundraisingAmt>695</FundraisingAmt>
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        <ProgramServicesAmt>1415972</ProgramServicesAmt>
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        <ProgramServicesAmt>314702</ProgramServicesAmt>
        <ManagementAndGeneralAmt>58268</ManagementAndGeneralAmt>
        <FundraisingAmt>13643</FundraisingAmt>
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        <ProgramServicesAmt>236792</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15846</ManagementAndGeneralAmt>
        <FundraisingAmt>468</FundraisingAmt>
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        <ProgramServicesAmt>1585323</ProgramServicesAmt>
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        <ProgramServicesAmt>707104</ProgramServicesAmt>
        <ManagementAndGeneralAmt>65710</ManagementAndGeneralAmt>
        <FundraisingAmt>24407</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>FEES AND MISCELLANEOUS</Desc>
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        <ProgramServicesAmt>255483</ProgramServicesAmt>
        <ManagementAndGeneralAmt>425707</ManagementAndGeneralAmt>
        <FundraisingAmt>39395</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>EVENTS</Desc>
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        <ProgramServicesAmt>80765</ProgramServicesAmt>
        <ManagementAndGeneralAmt>50468</ManagementAndGeneralAmt>
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      <TotalFunctionalExpensesGrp>
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        <ProgramServicesAmt>23568938</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5065383</ManagementAndGeneralAmt>
        <FundraisingAmt>1255003</FundraisingAmt>
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        <EOYAmt>9467305</EOYAmt>
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        <EOYAmt>2292222</EOYAmt>
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        <EOYAmt>102563</EOYAmt>
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        <EOYAmt>130561</EOYAmt>
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        <EOYAmt>37781704</EOYAmt>
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        <EOYAmt>40277097</EOYAmt>
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        <EOYAmt>20238583</EOYAmt>
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        <BOYAmt>2691853</BOYAmt>
        <EOYAmt>5811264</EOYAmt>
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      <TotalAssetsGrp>
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        <EOYAmt>116101299</EOYAmt>
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        <EOYAmt>1532156</EOYAmt>
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        <EOYAmt>7066267</EOYAmt>
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        <EOYAmt>8389242</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>16987665</EOYAmt>
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        <EOYAmt>47904644</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>47669072</BOYAmt>
        <EOYAmt>51208990</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
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        <EOYAmt>99113634</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>116101299</EOYAmt>
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      <NetUnrlzdGainsLossesInvstAmt>-1790031</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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      <FSAuditedInd>1</FSAuditedInd>
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        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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        <ContributionsAmt>579757</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>4479015</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>974342</GrantsOrScholarshipsAmt>
        <OtherExpendituresAmt>1092527</OtherExpendituresAmt>
        <EndYearBalanceAmt>51769951</EndYearBalanceAmt>
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      <CYMinus1YrEndwmtFundGrp>
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        <ContributionsAmt>628479</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-3788464</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>845287</GrantsOrScholarshipsAmt>
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        <EndYearBalanceAmt>48778048</EndYearBalanceAmt>
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      <CYMinus2YrEndwmtFundGrp>
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        <ContributionsAmt>6108435</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>13797389</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>805903</GrantsOrScholarshipsAmt>
        <OtherExpendituresAmt>911391</OtherExpendituresAmt>
        <EndYearBalanceAmt>53726851</EndYearBalanceAmt>
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      <CYMinus3YrEndwmtFundGrp>
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        <ContributionsAmt>437137</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-103365</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>592542</GrantsOrScholarshipsAmt>
        <OtherExpendituresAmt>1049458</OtherExpendituresAmt>
        <EndYearBalanceAmt>35538321</EndYearBalanceAmt>
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      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>36617927</BeginningYearBalanceAmt>
        <ContributionsAmt>25000</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>1764142</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>566751</GrantsOrScholarshipsAmt>
        <OtherExpendituresAmt>993769</OtherExpendituresAmt>
        <EndYearBalanceAmt>36846549</EndYearBalanceAmt>
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      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
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        <BookValueAmt>3247658</BookValueAmt>
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        <DepreciationAmt>27560889</DepreciationAmt>
        <BookValueAmt>32124062</BookValueAmt>
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      <LeaseholdImprovementsGrp>
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        <DepreciationAmt>8688109</DepreciationAmt>
        <BookValueAmt>701084</BookValueAmt>
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      <EquipmentGrp>
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        <DepreciationAmt>3255043</DepreciationAmt>
        <BookValueAmt>402839</BookValueAmt>
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      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>1306061</OtherCostOrOtherBasisAmt>
        <BookValueAmt>1306061</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>37781704</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>LOW VOLUME HEDGE FUNDS</Desc>
        <BookValueAmt>2823972</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>GROWTH HEDGE FUNDS</Desc>
        <BookValueAmt>7954511</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>PRIVATE EQUITY FUNDS</Desc>
        <BookValueAmt>7942373</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>PRIVATE REAL ESTATE FUNDS</Desc>
        <BookValueAmt>1517727</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>20238583</TotalBookValueSecuritiesAmt>
      <OtherAssetsOrgGrp>
        <Desc>INTEREST IN PERPETUAL TRUSTS</Desc>
        <BookValueAmt>2847092</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>EMPLOYEE RETENTION TAX CREDIT RECEIVABLE</Desc>
        <BookValueAmt>2964172</BookValueAmt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueNotReportedAmt>32133</RevenueNotReportedAmt>
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      <RevenueNotReportedFinclStmtAmt>15953281</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>39938027</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>24307462</TotExpnsEtcAuditedFinclStmtAmt>
      <OtherExpensesIncludedAmt>32133</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>32133</ExpensesNotReportedAmt>
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      <ExpensesNotRptFinclStmtAmt>5613995</ExpensesNotRptFinclStmtAmt>
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        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>TOWER HILL SCHOOL ASSOCIATION'S VARIOUS INDIVIDUAL ENDOWMENT FUNDS WERE CREATED BY DONORS TO SUPPLEMENT FUNDING IN PERPETUITY FOR EDUCATIONAL PROGRAMS, SCHOOL OPERATIONS, SCHOLARSHIPS, FACULTY COMPENSATION AND FORUMS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE INTERNAL REVENUE SERVICE HAS CLASSIFIED THE SCHOOL AS EXEMPT FROM FEDERAL INCOME TAXES UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE ("CODE"); AS AN ORGANIZATION, CONTRIBUTIONS TO WHICH ARE DEDUCTIBLE UNDER SECTION 170(B) OF THE CODE; AND AS AN ORGANIZATION THAT IS NOT A PRIVATE FOUNDATION AS DEFINED IN SECTION 509(A) OF THE CODE. MANAGEMENT HAS DETERMINED THAT AS OF JUNE 30, 2023 AND 2022, THERE ARE NO UNCERTAIN POSITIONS TAKEN OR EXPECTED TO BE TAKEN THAT WOULD REQUIRE RECOGNITION OF A LIABILITY OR DISCLOSURE IN THE FINANCIAL STATEMENTS. THE SCHOOL RECOGNIZES ACCRUED INTEREST AND PENALTIES ASSOCIATED WITH UNCERTAIN TAX POSITIONS, IF ANY. THERE WERE NO INCOME TAX RELATED INTEREST AND PENALTIES RECORDED FOR EITHER OF THE YEARS ENDED JUNE 30, 2023 OR 2022.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>FINANCIAL ASSISTANCE, REMISSION AND MERIT-BASED AWARDS 5,613,995. RESTRICTED CONTRIBUTIONS 1,579,669. INVESTMENT INCOME, NET OF BOARD DESIGNATED APPROPRIATIONS 5,695,587. EMPLOYEE RETENTION CREDIT 3,064,030.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>SPECIAL EVENT DIRECT EXPENSES 32,133.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>FINANCIAL ASSISTANCE, REMISSION AND MERIT-BASED AWARDS 5,613,995.</ExplanationTxt>
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      <PolicyStmtInBrochuresEtcInd>1</PolicyStmtInBrochuresEtcInd>
      <PlcyPblczdViaBroadcastMediaInd>1</PlcyPblczdViaBroadcastMediaInd>
      <MaintainRacialCompRecsInd>1</MaintainRacialCompRecsInd>
      <MaintainScholarshipsRecsInd>1</MaintainScholarshipsRecsInd>
      <MaintainCpyOfBrochuresEtcInd>1</MaintainCpyOfBrochuresEtcInd>
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      <DiscriminateRaceEmplmFcultyInd>0</DiscriminateRaceEmplmFcultyInd>
      <DiscriminateRaceSchsInd>0</DiscriminateRaceSchsInd>
      <DiscriminateRaceEducPlcyInd>0</DiscriminateRaceEducPlcyInd>
      <DiscriminateRaceUseOfFcltsInd>0</DiscriminateRaceUseOfFcltsInd>
      <DiscriminateRaceAthltProgInd>0</DiscriminateRaceAthltProgInd>
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      <GovernmentFinancialAidRvkdInd>0</GovernmentFinancialAidRvkdInd>
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        <FormAndLineReferenceDesc>SCHEDULE E, PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCHOOL'S DIVERSITY POLICIES ARE CONTAINED IN VARIOUS MEDIA NOTICES WHICH INCLUDE, BUT ARE NOT LIMITED TO, THE TOWER HILL GUIDE BOOK AND APPLICATION FORM PROVIDED TO PROSPECTIVE FAMILIES, THE TOWER HILL WEBSITE AND THROUGH OUR MEMBERSHIP IN THE ASSOCIATION OF DELAWARE VALLEY INDEPENDENT SCHOOLS (ADVIS). OUR NONDISCRIMINATION POLICY ALSO ACCOMPANIES ALL JOB VACANCY ADVERTISEMENTS.</ExplanationTxt>
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        <Desc>VARIOUS AUCTION ITEMS</Desc>
        <ContributionCnt>51</ContributionCnt>
        <NoncashContributionsRptF990Amt>28518</NoncashContributionsRptF990Amt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
        <ExplanationTxt>SECURITIES COUNT REPRESENTS THE NUMBER OF UNIQUE STOCK CONTRIBUTIONS BY A DONOR, THE AUCTION ITEMS COUNT REPRESENTS THE NUMBER OF SEPARATE DONATIONS OF ITEMS BY INDIVIDUAL DONORS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS REVIEWED AND APPROVED BY THE HEAD OF SCHOOL AND THE AUDIT COMMITTEE. PRIOR TO FILING, THE FINAL VERSION OF THE FORM 990 IS MADE AVAILABLE TO THE BOARD OF TRUSTEES FOR THEIR REVIEW.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>TRUSTEES ARE REQUIRED ANNUALLY TO SIGN CONFLICT OF INTEREST STATEMENTS AND DISCLOSE ANY KNOWN OR POTENTIAL CONFLICTS OF INTEREST IN THESE STATEMENTS AND AS THEY ARISE THROUGHOUT THE YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH YEAR, THE COMPENSATION COMMITTEE OF THE BOARD CONDUCTS A BENCHMARK ANALYSIS TO EVALUATE ALL COMPONENTS OF THE HEAD OF SCHOOL'S COMPENSATION PACKAGE, INCLUDING BASE SALARY, SCHOOL-WIDE BENEFITS, DEFERRED COMPENSATION, OTHER COMPENSATION, HOUSING, REMISSION, AND VEHICLE USAGE. THE BENCHMARK GROUP INCLUDES TOWER HILL SCHOOL AND OTHER SIMILARLY-SITUATED SCHOOLS IN THE US. THE COMPENSATION COMMITTEE DOCUMENTS THE MEETING, INCLUDING A FULL LIST OF THOSE PRESENT AND THEIR INDEPENDENCE, AND THE PROCESS USED TO CONDUCT THEIR REVIEW. THE COMMITTEE THEN PRESENTS THEIR RECOMMENDATION TO THE FULL BOARD FOR REVIEW.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS, FINANCIAL STATEMENTS AND FORM 990 ARE HELD WITH THE SCHOOL AND MAY BE MADE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AUDIT COMMITTEE IS RESPONSIBLE FOR THE OVERSIGHT OF THE AUDIT AND SELECTION OF THE INDEPENDENT ACCOUNTANT. THIS PROCESS REMAINS UNCHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
