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        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>205186</TotalAmt>
        <ProgramServicesAmt>150544</ProgramServicesAmt>
        <ManagementAndGeneralAmt>41227</ManagementAndGeneralAmt>
        <FundraisingAmt>13415</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>148021</BOYAmt>
        <EOYAmt>305202</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <LandBldgEquipCostOrOtherBssAmt>962708</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>99033</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>755196</BOYAmt>
        <EOYAmt>863675</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>903217</BOYAmt>
        <EOYAmt>1168877</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>993</BOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>993</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>902224</BOYAmt>
        <EOYAmt>1168877</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>902224</BOYAmt>
        <EOYAmt>1168877</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>903217</BOYAmt>
        <EOYAmt>1168877</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>266653</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA-01" softwareId="24020153">
      <GovernmentalUnitInd>X</GovernmentalUnitInd>
      <OtherSupportSumAmt>0</OtherSupportSumAmt>
      <PublicSupportCY170Pct>0</PublicSupportCY170Pct>
      <PublicSupportTotal509Amt>0</PublicSupportTotal509Amt>
      <PublicSupportCY509Pct>0</PublicSupportCY509Pct>
      <InvestmentIncomeCYPct>0</InvestmentIncomeCYPct>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB-01">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="IRS990ScheduleD-01" softwareId="24020153">
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
      <LandGrp>
        <InvestmentCostOrOtherBasisAmt>0</InvestmentCostOrOtherBasisAmt>
        <BookValueAmt>0</BookValueAmt>
      </LandGrp>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>924601</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>85843</DepreciationAmt>
        <BookValueAmt>838758</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>846</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>846</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>37261</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>12344</DepreciationAmt>
        <BookValueAmt>24917</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>863675</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>MASTER PLAN AND MUSEUM DESIGN</Desc>
        <BookValueAmt>0</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>COPPERMILL HALL FACILITIES AND FURNISHINGS</Desc>
        <BookValueAmt>0</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>STORAGE SHED</Desc>
        <BookValueAmt>0</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>INTERPRETIVE SIGNS</Desc>
        <BookValueAmt>0</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>MUSEUM AND COPPERMILL HALL FURNITURE</Desc>
        <BookValueAmt>0</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>0</TotalBookValueOtherAssetsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>471839</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>471839</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>471839</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>205186</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>205186</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>205186</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt III, Line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Corporation does not include its historical artifacts in its income statement or balance sheet.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt III, Line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>The Corporations historical artifacts include a Revere bell, a replica of the USS Constitution and other historical artifacts and exhibits in display cases.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="IRS990ScheduleG-01">
      <MailSolicitationsInd>X</MailSolicitationsInd>
      <SolicitationOfNonGovtGrantsInd>X</SolicitationOfNonGovtGrantsInd>
      <SolicitationOfGovtGrantsInd>X</SolicitationOfGovtGrantsInd>
      <AgrmtProfFundraisingActyInd>true</AgrmtProfFundraisingActyInd>
      <FundraiserActivityInfoGrp>
        <OrganizationBusinessName>
          <BusinessNameLine1Txt>501c(3) ADVISORS</BusinessNameLine1Txt>
        </OrganizationBusinessName>
        <ActivityTxt>DATABASE CONSULTING AND GRANT APPLICATIONS</ActivityTxt>
        <FundraiserControlOfFundsInd>false</FundraiserControlOfFundsInd>
        <GrossReceiptsAmt>5786</GrossReceiptsAmt>
        <RetainedByContractorAmt>5786</RetainedByContractorAmt>
        <NetToOrganizationAmt>0</NetToOrganizationAmt>
      </FundraiserActivityInfoGrp>
      <TotalGrossReceiptsAmt>5786</TotalGrossReceiptsAmt>
      <TotalRetainedByContractorsAmt>5786</TotalRetainedByContractorsAmt>
      <TotalNetToOrganizationAmt>0</TotalNetToOrganizationAmt>
      <FundraisingEventInformationGrp>
        <Event1Nm>HERITAGE DAY</Event1Nm>
        <GrossReceiptsEvent1Amt>24850</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>24850</GrossRevenueEvent1Amt>
        <OtherDirectExpensesEvent1Amt>18746</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>24850</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>24850</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>18746</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>18746</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>6104</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="IRS990ScheduleO-01" softwareId="24020153">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 18</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990 is submitted along with Massachusetts Form PC is available on Attorney Generals website.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>A complete copy of the 990 was shared to all members of the Board to approve before filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>All Board members and key employees must go through state ethics training as required by all municipal employees and our secretary retains records of the completion.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt XI</FormAndLineReferenceDesc>
        <ExplanationTxt>Adjustment to Net Assets of (3,211) to correct beginning balance.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>