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        <SetAsideSuitabilityTestAmt>0</SetAsideSuitabilityTestAmt>
        <SetAsideCashDistriTestAmt>0</SetAsideCashDistriTestAmt>
        <QualifyingDistributionsAmt>5917281</QualifyingDistributionsAmt>
      </PFQualifyingDistributionsGrp>
      <UndistributedIncomeGrp>
        <DistributableAsAdjustedAmt>5507377</DistributableAsAdjustedAmt>
        <UndistributedIncomePYAmt>3815630</UndistributedIncomePYAmt>
        <PriorYear1Yr>2019</PriorYear1Yr>
        <PriorYear2Yr>2018</PriorYear2Yr>
        <PriorYear3Yr>2017</PriorYear3Yr>
        <ExcessDistributionCyovYr1Amt>0</ExcessDistributionCyovYr1Amt>
        <TotalExcessDistributionCyovAmt>0</TotalExcessDistributionCyovAmt>
        <QualifyingDistributionsAmt>5917281</QualifyingDistributionsAmt>
        <AppliedToYear1Amt>3815630</AppliedToYear1Amt>
        <AppliedToCurrentYearAmt>2101651</AppliedToCurrentYearAmt>
        <RemainingDistriFromCorpusAmt>0</RemainingDistriFromCorpusAmt>
        <ExcessDistriCyovAppCYCorpusAmt>0</ExcessDistriCyovAppCYCorpusAmt>
        <ExcessDistributionCyovAppCYAmt>0</ExcessDistributionCyovAppCYAmt>
        <TotalCorpusAmt>0</TotalCorpusAmt>
        <UndistributedIncomeCYAmt>3405726</UndistributedIncomeCYAmt>
        <ExcessDistriCyovToNextYrAmt>0</ExcessDistriCyovToNextYrAmt>
        <ExcessFromCurrentYearAmt>0</ExcessFromCurrentYearAmt>
      </UndistributedIncomeGrp>
      <PrivateOperatingFoundationsGrp></PrivateOperatingFoundationsGrp>
      <SupplementaryInformationGrp>
        <OnlyContriToPreselectedInd>X</OnlyContriToPreselectedInd>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>SEE STATEMENT</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>C/O WEWORKS 7272 WISCONSIN AVE FL10</AddressLine1Txt>
            <CityNm>BETHESDA</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>20814</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>CHARITABLE PURPOSES.</GrantOrContributionPurposeTxt>
          <Amt>5491710</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>5491710</TotalGrantOrContriPdDurYrAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <FeesContractsFromGovtAgGrp />
        <MembershipDuesAndAssmntGrp />
        <IntOnSavAndTempCashInvstGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>18064</ExclusionAmt>
        </IntOnSavAndTempCashInvstGrp>
        <DividendsAndInterestFromSecDtl>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>2084576</ExclusionAmt>
        </DividendsAndInterestFromSecDtl>
        <NetRntlIncmReDebtFincdPropGrp />
        <NetRntlIncmReNotDebtFincdProp />
        <NetRentalIncomePersonalPropGrp />
        <OtherInvestmentIncomeGrp />
        <GainSalesAstOthThanInvntryGrp>
          <ExclusionCd>18</ExclusionCd>
          <ExclusionAmt>762801</ExclusionAmt>
        </GainSalesAstOthThanInvntryGrp>
        <NetIncomeLossFromSpecialEvtGrp />
        <GrossProfitLossSlsOfInvntryGrp />
        <SubtotalsIncmProducingActyGrp>
          <ExclusionAmt>2865441</ExclusionAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>2865441</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>false</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>false</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>false</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>false</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>false</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>false</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>false</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>false</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>false</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>false</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <AccountingFeesSchedule documentId="AccountingFeesSch">
      <AccountingFeesDetail>
        <CategoryTxt>ACCOUNTING FEES</CategoryTxt>
        <Amt>42210</Amt>
        <NetInvestmentIncomeAmt>18605</NetInvestmentIncomeAmt>
        <DisbursementsCharitablePrpsAmt>18605</DisbursementsCharitablePrpsAmt>
      </AccountingFeesDetail>
    </AccountingFeesSchedule>
    <DepreciationSchedule documentId="DepreciationSch" />
    <InvestmentsCorpBondsSchedule documentId="InvestCorpBondsSch">
      <InvestmentsCorporateBondsGrp>
        <BondNm>HARBOR CORP BONDS-SEE ATTD</BondNm>
        <EOYBookValueAmt>10901762</EOYBookValueAmt>
        <EOYFMVAmt>10418729</EOYFMVAmt>
      </InvestmentsCorporateBondsGrp>
    </InvestmentsCorpBondsSchedule>
    <InvestmentsCorpStockSchedule documentId="InvestCorpStockSch">
      <InvestmentsCorporateStockGrp>
        <StockNm>141,375 SHS MARRIOTT INTL</StockNm>
        <EOYBookValueAmt>5780078</EOYBookValueAmt>
        <EOYFMVAmt>21734993</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
    </InvestmentsCorpStockSchedule>
    <InvestmentsGovtObligationsSch documentId="InvGovtObligSch">
      <USGovtObligationsBookVlEOYAmt>15025942</USGovtObligationsBookVlEOYAmt>
      <USGovtObligationsEOYFMVAmt>14070660</USGovtObligationsEOYFMVAmt>
    </InvestmentsGovtObligationsSch>
    <InvestmentsOtherSchedule2 documentId="InvOtherSch2">
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>HARBOR MUTUAL FUNDS-SEE ATTD</CategoryOrItemTxt>
        <BookValueAmt>22874201</BookValueAmt>
        <EOYFMVAmt>24055973</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>HARBOR EXCH TRD PROD-SEE ATTD</CategoryOrItemTxt>
        <BookValueAmt>23340432</BookValueAmt>
        <EOYFMVAmt>29828720</EOYFMVAmt>
      </InvestmentsOtherGrp>
    </InvestmentsOtherSchedule2>
    <LegalFeesSchedule documentId="LegalFeesSch">
      <LegalFeesGrp>
        <CategoryTxt>LEGAL FEES</CategoryTxt>
        <LegalFeesAmt>3825</LegalFeesAmt>
        <DisbursementsCharitablePrpsAmt>3825</DisbursementsCharitablePrpsAmt>
      </LegalFeesGrp>
    </LegalFeesSchedule>
    <OtherExpensesSchedule documentId="OtherExpensesSch">
      <OtherExpensesScheduleGrp>
        <Desc>COMPUTER SOFTWARE</Desc>
        <RevenueAndExpensesPerBooksAmt>18699</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>18699</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>DE FILING FEE</Desc>
        <RevenueAndExpensesPerBooksAmt>498</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>498</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>SUPPLIES</Desc>
        <RevenueAndExpensesPerBooksAmt>465</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>465</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>POSTAGE</Desc>
        <RevenueAndExpensesPerBooksAmt>784</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>784</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>RENTAL EQUIPMENT</Desc>
        <RevenueAndExpensesPerBooksAmt>1737</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>1737</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>MISC. ADMIN EXPENSES</Desc>
        <RevenueAndExpensesPerBooksAmt>2327</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>2327</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>NONEMPLOYEE INSURANCE</Desc>
        <RevenueAndExpensesPerBooksAmt>2962</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>2962</NetInvestmentIncomeAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncomeSchedule2 documentId="OtherIncomeSch2">
      <OtherIncomeDetail>
        <Desc>TAX REFUND</Desc>
      </OtherIncomeDetail>
    </OtherIncomeSchedule2>
    <OtherIncreasesSchedule documentId="OtherIncreasesSch">
      <OtherIncreasesDetail>
        <Desc>FMV ADJUSTMENT ON DONATED SECURITIES</Desc>
        <Amt>949643</Amt>
      </OtherIncreasesDetail>
      <OtherIncreasesDetail>
        <Desc>BALANCE SHEET ADJUSTMENT - TIMING</Desc>
        <Amt>527</Amt>
      </OtherIncreasesDetail>
    </OtherIncreasesSchedule>
    <OtherProfessionalFeesSchedule documentId="OthProfFeesSch">
      <OtherProfessionalFeesDetail>
        <CategoryTxt>INVESTMENT MANAGEMENT FEES</CategoryTxt>
        <Amt>89672</Amt>
        <NetInvestmentIncomeAmt>89672</NetInvestmentIncomeAmt>
      </OtherProfessionalFeesDetail>
      <OtherProfessionalFeesDetail>
        <CategoryTxt>BANK CHARGE</CategoryTxt>
        <Amt>160</Amt>
        <DisbursementsCharitablePrpsAmt>160</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
      <OtherProfessionalFeesDetail>
        <CategoryTxt>OTHER PROFESSIONAL FEES</CategoryTxt>
        <Amt>20869</Amt>
        <DisbursementsCharitablePrpsAmt>19579</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
    </OtherProfessionalFeesSchedule>
    <TaxesSchedule documentId="TaxesSchedule">
      <TaxesDetail>
        <CategoryTxt>ESTIMATED TAX PAYMENTS</CategoryTxt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>
