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        <MinimumInvestmentReturnAmt>973598</MinimumInvestmentReturnAmt>
      </MinimumInvestmentReturnGrp>
      <DistributableAmountGrp>
        <MinimumInvestmentReturnAmt>973598</MinimumInvestmentReturnAmt>
        <TaxBasedOnInvestmentIncomeAmt>7397</TaxBasedOnInvestmentIncomeAmt>
        <TotalTaxAmt>7397</TotalTaxAmt>
        <DistributableBeforeAdjAmt>966201</DistributableBeforeAdjAmt>
        <DistributableBeforeDedAmt>966201</DistributableBeforeDedAmt>
        <DistributableAsAdjustedAmt>966201</DistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <PFQualifyingDistributionsGrp>
        <ExpensesAndContributionsAmt>890165</ExpensesAndContributionsAmt>
        <ProgramRelatedInvstTotalAmt>0</ProgramRelatedInvstTotalAmt>
        <CharitableAssetsAcquisPaidAmt>0</CharitableAssetsAcquisPaidAmt>
        <SetAsideSuitabilityTestAmt>0</SetAsideSuitabilityTestAmt>
        <SetAsideCashDistriTestAmt>0</SetAsideCashDistriTestAmt>
        <QualifyingDistributionsAmt>890165</QualifyingDistributionsAmt>
      </PFQualifyingDistributionsGrp>
      <UndistributedIncomeGrp>
        <DistributableAsAdjustedAmt>966201</DistributableAsAdjustedAmt>
        <PriorYear1Yr>2022</PriorYear1Yr>
        <PriorYear2Yr>2021</PriorYear2Yr>
        <PriorYear3Yr>2020</PriorYear3Yr>
        <ExcessDistributionCyovYr5Amt>1397275</ExcessDistributionCyovYr5Amt>
        <ExcessDistributionCyovYr4Amt>1980405</ExcessDistributionCyovYr4Amt>
        <ExcessDistributionCyovYr3Amt>187378</ExcessDistributionCyovYr3Amt>
        <ExcessDistributionCyovYr2Amt>29782</ExcessDistributionCyovYr2Amt>
        <TotalExcessDistributionCyovAmt>3594840</TotalExcessDistributionCyovAmt>
        <QualifyingDistributionsAmt>890165</QualifyingDistributionsAmt>
        <AppliedToCurrentYearAmt>890165</AppliedToCurrentYearAmt>
        <RemainingDistriFromCorpusAmt>0</RemainingDistriFromCorpusAmt>
        <ExcessDistriCyovAppCYCorpusAmt>76036</ExcessDistriCyovAppCYCorpusAmt>
        <ExcessDistributionCyovAppCYAmt>76036</ExcessDistributionCyovAppCYAmt>
        <TotalCorpusAmt>3518804</TotalCorpusAmt>
        <UndistributedIncomeCYAmt>0</UndistributedIncomeCYAmt>
        <ExcessDistriCyovFromYr5Amt>1321239</ExcessDistriCyovFromYr5Amt>
        <ExcessDistriCyovToNextYrAmt>2197565</ExcessDistriCyovToNextYrAmt>
        <ExcessFromYear4Amt>1980405</ExcessFromYear4Amt>
        <ExcessFromYear3Amt>187378</ExcessFromYear3Amt>
        <ExcessFromYear2Amt>29782</ExcessFromYear2Amt>
      </UndistributedIncomeGrp>
      <PrivateOperatingFoundationsGrp></PrivateOperatingFoundationsGrp>
      <SupplementaryInformationGrp>
        <ContributingManagerNm>NONE</ContributingManagerNm>
        <ShareholderManagerNm>NONE</ShareholderManagerNm>
        <ApplicationSubmissionInfoGrp>
          <RecipientPersonNm>Michael Kuza</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>36 Summer Street</AddressLine1Txt>
            <CityNm>Natick</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>01760</ZIPCd>
          </RecipientUSAddress>
          <RecipientPhoneNum>5083155361</RecipientPhoneNum>
          <FormAndInfoAndMaterialsTxt>SEE WEBSITE</FormAndInfoAndMaterialsTxt>
          <SubmissionDeadlinesTxt>SEE WEBSITE</SubmissionDeadlinesTxt>
          <RestrictionsOnAwardsTxt>SEE WEBSITE</RestrictionsOnAwardsTxt>
        </ApplicationSubmissionInfoGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>GRANTS &amp; CONTRIBUTIONS PAID</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>Available upon request</AddressLine1Txt>
            <CityNm>Natick</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>01760</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>Not Related</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>Exempt Purpose</GrantOrContributionPurposeTxt>
          <Amt>881235</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>881235</TotalGrantOrContriPdDurYrAmt>
        <GrantOrContriApprvForFutGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Community Foundation For Metrowest</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>3 Eliot Street</AddressLine1Txt>
            <CityNm>Natick</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>01760</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>Not Related</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>Exempt Purpose</GrantOrContributionPurposeTxt>
          <Amt>0</Amt>
        </GrantOrContriApprvForFutGrp>
        <GrantOrContriApprvForFutGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>South Middlesex Opportunity Council</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>7 Bishop Street</AddressLine1Txt>
            <CityNm>Framingham</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>01702</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>Not Related</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>Exempt Purpose</GrantOrContributionPurposeTxt>
          <Amt>0</Amt>
        </GrantOrContriApprvForFutGrp>
        <TotalGrantOrContriApprvFutAmt>244555</TotalGrantOrContriApprvFutAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <FeesContractsFromGovtAgGrp />
        <MembershipDuesAndAssmntGrp />
        <IntOnSavAndTempCashInvstGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>57665</ExclusionAmt>
        </IntOnSavAndTempCashInvstGrp>
        <DividendsAndInterestFromSecDtl>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>571476</ExclusionAmt>
        </DividendsAndInterestFromSecDtl>
        <NetRntlIncmReDebtFincdPropGrp />
        <NetRntlIncmReNotDebtFincdProp />
        <NetRentalIncomePersonalPropGrp />
        <OtherInvestmentIncomeGrp />
        <GainSalesAstOthThanInvntryGrp>
          <ExclusionCd>18</ExclusionCd>
          <ExclusionAmt>-56</ExclusionAmt>
        </GainSalesAstOthThanInvntryGrp>
        <NetIncomeLossFromSpecialEvtGrp />
        <GrossProfitLossSlsOfInvntryGrp />
        <SubtotalsIncmProducingActyGrp>
          <ExclusionAmt>629085</ExclusionAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>629085</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>WOLF &amp; COMPANY, P.C.</CategoryTxt>
        <Amt>3100</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>3100</DisbursementsCharitablePrpsAmt>
      </AccountingFeesDetail>
    </AccountingFeesSchedule>
    <ContractorCompensationExpln documentId="ContractCompenExpln">
      <ContractorCompExplnGrp>
        <ContractorPersonNm>Middlesex Savings Bank</ContractorPersonNm>
        <ExplanationTxt>Savings Bank</ExplanationTxt>
      </ContractorCompExplnGrp>
    </ContractorCompensationExpln>
    <DepreciationSchedule documentId="DepreciationSch" />
    <InvestmentsCorpBondsSchedule documentId="InvestCorpBondsSch">
      <InvestmentsCorporateBondsGrp>
        <BondNm>CORPORATE BONDS</BondNm>
        <EOYBookValueAmt>3104648</EOYBookValueAmt>
        <EOYFMVAmt>3104648</EOYFMVAmt>
      </InvestmentsCorporateBondsGrp>
    </InvestmentsCorpBondsSchedule>
    <InvestmentsCorpStockSchedule documentId="InvestCorpStockSch">
      <InvestmentsCorporateStockGrp>
        <StockNm>PREFFERED STOCK</StockNm>
        <EOYBookValueAmt>200000</EOYBookValueAmt>
        <EOYFMVAmt>200000</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>COMMON STOCK</StockNm>
        <EOYBookValueAmt>2473402</EOYBookValueAmt>
        <EOYFMVAmt>2473402</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
    </InvestmentsCorpStockSchedule>
    <InvestmentsGovtObligationsSch documentId="InvGovtObligSch">
      <USGovtObligationsBookVlEOYAmt>9543189</USGovtObligationsBookVlEOYAmt>
      <USGovtObligationsEOYFMVAmt>9543189</USGovtObligationsEOYFMVAmt>
    </InvestmentsGovtObligationsSch>
    <InvestmentsOtherSchedule2 documentId="InvOtherSch2">
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>OTHER INVESTMENTS</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
        <BookValueAmt>4132795</BookValueAmt>
        <EOYFMVAmt>4132795</EOYFMVAmt>
      </InvestmentsOtherGrp>
    </InvestmentsOtherSchedule2>
    <OtherExpensesSchedule documentId="OtherExpensesSch">
      <OtherExpensesScheduleGrp>
        <Desc>MEMBERSHIPS/DUES</Desc>
        <RevenueAndExpensesPerBooksAmt>5300</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>5300</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>MA FILING FEE</Desc>
        <RevenueAndExpensesPerBooksAmt>530</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>530</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncreasesSchedule documentId="OtherIncreasesSch">
      <OtherIncreasesDetail>
        <Desc>UNREALIZED GAINs/losses</Desc>
        <Amt>576090</Amt>
      </OtherIncreasesDetail>
    </OtherIncreasesSchedule>
    <OtherProfessionalFeesSchedule documentId="OthProfFeesSch">
      <OtherProfessionalFeesDetail>
        <CategoryTxt>CUSTODY SERVICES</CategoryTxt>
        <Amt>786</Amt>
        <NetInvestmentIncomeAmt>786</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
      <OtherProfessionalFeesDetail>
        <CategoryTxt>MSCF MANAGEMENT FEES</CategoryTxt>
        <Amt>96196</Amt>
        <NetInvestmentIncomeAmt>96196</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
    </OtherProfessionalFeesSchedule>
    <TaxesSchedule documentId="TaxesSchedule">
      <TaxesDetail>
        <CategoryTxt>FEDERAL EXCISE TAX</CategoryTxt>
        <Amt>10324</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
      <TaxesDetail>
        <CategoryTxt>MA STATE TAX</CategoryTxt>
        <Amt>2624</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>
