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      <LandBldgEquipAccumDeprecAmt>95058</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
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        <EOYAmt>9266</EOYAmt>
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      <InvestmentsOtherSecuritiesGrp>
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        <EOYAmt>2287</EOYAmt>
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        <EOYAmt>654446</EOYAmt>
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        <EOYAmt>656733</EOYAmt>
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      <OrgDoesNotFollowSFAS117Ind>X</OrgDoesNotFollowSFAS117Ind>
      <CapStkTrPrinCurrentFundsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
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      <PdInCapSrplsLandBldgEqpFundGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
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      <RtnEarnEndowmentIncmOthFndsGrp>
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        <EOYAmt>5570660</EOYAmt>
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        <BOYAmt>5317459</BOYAmt>
        <EOYAmt>5570660</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>5933449</BOYAmt>
        <EOYAmt>6227393</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>46243</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>206958</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>91699</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>82433</DepreciationAmt>
        <BookValueAmt>9266</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>12625</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>12625</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>9266</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>TOTAL INTERNATIONAL STOCK INDEX ADMIRAL</Desc>
        <BookValueAmt>879566</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>TOTAL STOCK MARKET INDEX ADMIRAL</Desc>
        <BookValueAmt>1548837</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>IMMEDIATE-TERM INVESTMENT GROUP</Desc>
        <BookValueAmt>628371</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>TOTAL BOND MARKET INDEX ADMIRAL</Desc>
        <BookValueAmt>987230</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>TOTAL INTERNATIONAL BOND INDEX ADMIRA</Desc>
        <BookValueAmt>858464</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>SHORT-TERM INVESTMENT GRADE</Desc>
        <BookValueAmt>379953</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>5282421</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>BENEFITS PAYABLE</Desc>
        <Amt>465146</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>IBNR</Desc>
        <Amt>189300</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>654446</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>5552382</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>206958</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>206958</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>5345424</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>16458</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>16458</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>5361882</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>5259378</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>5259378</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>16458</InvestmentExpensesNotIncld2Amt>
      <OtherExpensesNotIncludedAmt>39803</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>56261</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>5315639</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACCOUNTING PRINCIPLES GENERALLY ACCEPTED IN THE UNITED STATES OF AMERICA REQUIRE PLAN MANAGEMENT TO EVALUATE TAX POSITIONS TAKEN BY THE PLAN AND RECOGNIZE A TAX LIABILITY (OR ASSET) IF THE PLAN HAS TAKEN AN UNCERTAIN POSITION THAT MORE LIKELY THAN NOT WOULD NOT BE SUSTAINED UPON EXAMINATION BY THE DEPARTMENT OF LABOR AND INTERNAL REVENUE SERVICE. THE PLAN ADMINISTRATOR HAS ANALYZED THE TAX POSITIONS TAKEN BY THE PLAN, AND HAS CONCLUDED THAT AS OF JUNE 30, 2019 , THERE ARE NO UNCERTAIN POSITIONS TAKEN OR EXPECTED TO BE TAKEN THAT WOULD REQUIRE RECOGNITION OF A LIABILITY (OR ASSET) OR DISCLOSURE IN THE FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>CHANGE IN BENEFIT PAYABLE 40,503. CHANGE IN IBNR -700.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ORGANIZED WITH MEMBERS WHO ARE QUALIFYING PUBLIC EMPLOYEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS ELECT THE TRUSTEES</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>TRUSTEES REVIEW AND APPROVE THE FORM 990 PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION DETERMINED BY COMPARABILITY DATA.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AVAILABLE UPON REQUEST</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>NO CHANGE IN OVERSIGHT PROCESS OR SELECTION OF INDEPENDENT ACCOUNTANT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CITY OF CAMBRIDGE</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CAMBRIDGE RETIREMENT BOARD</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CAMBRIDGE HEALTH ALLIANCE</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CAMBRIDGE SCHOOL DEPARTMENT</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>1</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>