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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Michael Flynn</PersonNm>
        <TitleTxt>Executive VP and COO</TitleTxt>
        <AverageHoursPerWeekRt>0.50</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>113220</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>9042</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jennifer Blasy</PersonNm>
        <TitleTxt>Controller-until 03/2021</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>112200</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>5486</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Peter Seibert</PersonNm>
        <TitleTxt>CEO &amp; President - from 02/2021</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>348870</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>27921</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>2</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>17131</MembershipDuesAmt>
      <GovernmentGrantsAmt>760888</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>527088</AllOtherContributionsAmt>
      <TotalContributionsAmt>1305107</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Museum Admissions</Desc>
        <BusinessCd>713990</BusinessCd>
        <TotalRevenueColumnAmt>103918</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>103918</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
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        <BusinessCd>900099</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>90010</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Education</Desc>
        <BusinessCd>900099</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>41575</RelatedOrExemptFuncIncomeAmt>
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        <ExclusionAmt>660522</ExclusionAmt>
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      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>0</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>61891</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
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        <ExclusionAmt>61891</ExclusionAmt>
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      <FundraisingDirectExpensesAmt>63328</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>52945</TotalRevenueColumnAmt>
        <ExclusionAmt>52945</ExclusionAmt>
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      <CostOfGoodsSoldAmt>6769</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>4534</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>993</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>3541</UnrelatedBusinessRevenueAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>Miscellaneous income</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>67659</TotalRevenueColumnAmt>
        <ExclusionAmt>67659</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>67659</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>2388161</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>236496</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>3541</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>843017</ExclusionAmt>
      </TotalRevenueGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>162849</TotalAmt>
        <ProgramServicesAmt>162849</ProgramServicesAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>1481645</TotalAmt>
        <ProgramServicesAmt>1083334</ProgramServicesAmt>
        <ManagementAndGeneralAmt>202546</ManagementAndGeneralAmt>
        <FundraisingAmt>195765</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>333860</TotalAmt>
        <ProgramServicesAmt>252996</ProgramServicesAmt>
        <ManagementAndGeneralAmt>41120</ManagementAndGeneralAmt>
        <FundraisingAmt>39744</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>144122</TotalAmt>
        <ProgramServicesAmt>109214</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17751</ManagementAndGeneralAmt>
        <FundraisingAmt>17157</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>28083</TotalAmt>
        <ProgramServicesAmt>18436</ProgramServicesAmt>
        <ManagementAndGeneralAmt>7141</ManagementAndGeneralAmt>
        <FundraisingAmt>2506</FundraisingAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>39501</TotalAmt>
        <ProgramServicesAmt>25932</ProgramServicesAmt>
        <ManagementAndGeneralAmt>10044</ManagementAndGeneralAmt>
        <FundraisingAmt>3525</FundraisingAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
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        <ProgramServicesAmt>71003</ProgramServicesAmt>
        <ManagementAndGeneralAmt>27502</ManagementAndGeneralAmt>
        <FundraisingAmt>9651</FundraisingAmt>
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      <FeesForServicesOtherGrp>
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        <ProgramServicesAmt>34292</ProgramServicesAmt>
        <ManagementAndGeneralAmt>13283</ManagementAndGeneralAmt>
        <FundraisingAmt>4661</FundraisingAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
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        <ProgramServicesAmt>19655</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6962</ManagementAndGeneralAmt>
        <FundraisingAmt>5894</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>104059</TotalAmt>
        <ProgramServicesAmt>75265</ProgramServicesAmt>
        <ManagementAndGeneralAmt>14311</ManagementAndGeneralAmt>
        <FundraisingAmt>14483</FundraisingAmt>
      </OfficeExpensesGrp>
      <OccupancyGrp>
        <TotalAmt>410671</TotalAmt>
        <ProgramServicesAmt>369613</ProgramServicesAmt>
        <ManagementAndGeneralAmt>28741</ManagementAndGeneralAmt>
        <FundraisingAmt>12317</FundraisingAmt>
      </OccupancyGrp>
      <InterestGrp>
        <TotalAmt>13882</TotalAmt>
        <ManagementAndGeneralAmt>13882</ManagementAndGeneralAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>1190148</TotalAmt>
        <ProgramServicesAmt>1116692</ProgramServicesAmt>
        <ManagementAndGeneralAmt>51449</ManagementAndGeneralAmt>
        <FundraisingAmt>22007</FundraisingAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>116927</TotalAmt>
        <ProgramServicesAmt>106209</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6107</ManagementAndGeneralAmt>
        <FundraisingAmt>4611</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Exhibit Maintenance</Desc>
        <TotalAmt>57642</TotalAmt>
        <ProgramServicesAmt>57642</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Program Supplies &amp; Mate</Desc>
        <TotalAmt>21566</TotalAmt>
        <ProgramServicesAmt>21566</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Staff Development</Desc>
        <TotalAmt>10918</TotalAmt>
        <ProgramServicesAmt>8552</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1199</ManagementAndGeneralAmt>
        <FundraisingAmt>1167</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Museum Events</Desc>
        <TotalAmt>5812</TotalAmt>
        <ProgramServicesAmt>643</ProgramServicesAmt>
        <ManagementAndGeneralAmt>790</ManagementAndGeneralAmt>
        <FundraisingAmt>4379</FundraisingAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>4314588</TotalAmt>
        <ProgramServicesAmt>3533893</ProgramServicesAmt>
        <ManagementAndGeneralAmt>442828</ManagementAndGeneralAmt>
        <FundraisingAmt>337867</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>313502</BOYAmt>
        <EOYAmt>210266</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>176108</BOYAmt>
        <EOYAmt>304403</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>45240</BOYAmt>
        <EOYAmt>178774</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <BOYAmt>3810</BOYAmt>
        <EOYAmt>16819</EOYAmt>
      </AccountsReceivableGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>10295</BOYAmt>
        <EOYAmt>9930</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>20444</BOYAmt>
        <EOYAmt>21034</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>25543888</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>21365763</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>5241940</BOYAmt>
        <EOYAmt>4178125</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>18867981</BOYAmt>
        <EOYAmt>23103211</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>93385</BOYAmt>
        <EOYAmt>131464</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>24772705</BOYAmt>
        <EOYAmt>28154026</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>121775</BOYAmt>
        <EOYAmt>269801</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>66287</BOYAmt>
        <EOYAmt>256106</EOYAmt>
      </DeferredRevenueGrp>
      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>462107</BOYAmt>
        <EOYAmt>405128</EOYAmt>
      </MortgNotesPyblScrdInvstPropGrp>
      <UnsecuredNotesLoansPayableGrp>
        <BOYAmt>498220</BOYAmt>
        <EOYAmt>519200</EOYAmt>
      </UnsecuredNotesLoansPayableGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>269500</BOYAmt>
        <EOYAmt>192295</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>1417889</BOYAmt>
        <EOYAmt>1642530</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>23131516</BOYAmt>
        <EOYAmt>26332337</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>223300</BOYAmt>
        <EOYAmt>179159</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>23354816</BOYAmt>
        <EOYAmt>26511496</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>24772705</BOYAmt>
        <EOYAmt>28154026</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-1926427</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>5083107</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <ConsolidatedBasisFinclStmtInd>X</ConsolidatedBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>331522</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4464583</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2121270</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>807124</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1305107</CurrentTaxYearAmt>
        <TotalAmt>9029606</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus1YearAmt>527093</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>235503</CurrentTaxYearAmt>
        <TotalAmt>762596</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>331522</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4464583</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2121270</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1334217</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1540610</CurrentTaxYearAmt>
        <TotalAmt>9792202</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <CurrentTaxYearMinus1YearAmt>161263</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>142119</CurrentTaxYearAmt>
        <TotalAmt>303382</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus1YearAmt>161263</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>142119</CurrentTaxYearAmt>
        <TotalAmt>303382</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>9488820</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>204973</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>784844</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>876300</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>718304</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>722413</CurrentTaxYearAmt>
        <TotalAmt>3306834</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>204973</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>784844</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>876300</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>718304</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>722413</CurrentTaxYearAmt>
        <TotalAmt>3306834</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <NetIncomeFromOtherUBIGrp>
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        <CurrentTaxYearMinus3YearsAmt>6519</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>-420</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3390</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3541</CurrentTaxYearAmt>
        <TotalAmt>21570</TotalAmt>
      </NetIncomeFromOtherUBIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus1YearAmt>7351</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>67659</CurrentTaxYearAmt>
        <TotalAmt>75010</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>545035</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5255946</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2997150</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2063262</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2334223</CurrentTaxYearAmt>
        <TotalAmt>13195616</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.71910</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.75460</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.25060</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.22870</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part III, Short Year Explanation:</FormAndLineReferenceDesc>
        <ExplanationTxt>The amounts reported for 2016 are based on a short year return for the period 01/01/2017-06/30/2017. The Independence Seaport Museum changed from a calendar year to a fiscal year on 01/01/2017. Therefore, a full calendar year return was filed for 12/31/2016 and a short year return for 06/30/2017. The short year amounts skew the public support percentages down and under the 33 1/3%. However, in two years, when the 2016 column is no longer included in the 5 year calculation, the calculated public support percentage should increase above the required 33 1/3% to meet the public support test.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <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="RetDoc1040000001">
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollUsedScholarlyRsrchInd>X</CollUsedScholarlyRsrchInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <SolicitedAssetsSaleInd>0</SolicitedAssetsSaleInd>
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>18903674</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>5635231</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>1435600</OtherExpendituresAmt>
        <EndYearBalanceAmt>23103305</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>20439460</BeginningYearBalanceAmt>
        <ContributionsAmt>128464</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>176186</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>1840436</OtherExpendituresAmt>
        <EndYearBalanceAmt>18903674</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>23844633</BeginningYearBalanceAmt>
        <ContributionsAmt>876300</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>314786</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>4596259</OtherExpendituresAmt>
        <EndYearBalanceAmt>20439460</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>23516495</BeginningYearBalanceAmt>
        <ContributionsAmt>784860</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>1051826</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>1508548</OtherExpendituresAmt>
        <EndYearBalanceAmt>23844633</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>22802849</BeginningYearBalanceAmt>
        <ContributionsAmt>245583</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>1541317</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>1073254</OtherExpendituresAmt>
        <EndYearBalanceAmt>23516495</EndYearBalanceAmt>
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      <FootnoteTextInd>X</FootnoteTextInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>Management has analyzed the tax positions taken and has concluded that as of June 30, 2021, 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. The Museum's tax returns are subject to examination by federal and state taxing authorities. However, there are no examinations currently in progress or pending.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>The Museum's collections consist of historical artifacts, antiques, and other irreplaceable items that are maintained for public exhibition, education, and research in furtherance of public service rather than for financial gain. Collections are the most valuable assets of the Museum and are protected, kept unencumbered, cared for and preserved. The collections, which were acquired primarily though donation, are not recognized or capitalized as assets in the statement of financial position. Collection items purchased during the year are recorded as decreases in net assets without donor restriction in the year in which the items are acquired, or as decreases in net assets with donor restriction if the assets used to purchase the items are restricted by donors. The Museum records proceeds from deaccessions and insurance recoveries as increases in the consolidated statement of activities and changes in net assets.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>The general fund has been established to support and promote the growth, progress and general welfare of the Museum. The Boatshop fund has been established to support the Boatshop also known as the Workshop on the Water.</ExplanationTxt>
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        <Event2Nm>Holiday Toast/Parade of Light</Event2Nm>
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        <GrossRevenueEvent2Amt>66981</GrossRevenueEvent2Amt>
        <OtherDirectExpensesEvent2Amt>17809</OtherDirectExpensesEvent2Amt>
        <OtherEventsTotalCnt>1</OtherEventsTotalCnt>
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        <GrossRevenueOtherEventsAmt>13764</GrossRevenueOtherEventsAmt>
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        <GrossReceiptsTotalAmt>113773</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>113773</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>41010</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>41010</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>72763</NetIncomeSummaryAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part I, Line 1, Description of Organization Mission, continued:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Museum will take a leadership role in the future of the Delaware River Watershed including awareness of and advocacy for our valuable natural resources and the economic development of the region. As a good community steward, the Museum will provide an education and career awareness "Ladder of Opportunity" to students in our region and through them generational awareness of our water resources to all of our citizens. Our goal is to create understanding of the historical, economic, and environmental importance of the Delaware River Watershed. The Museum is home to one of the largest maritime art and artifact collections in North America, documenting the local and regional history of the Ports of Philadelphia, and two National Historic Landmark ships, Cruiser Olympia, Admiral Dewey's flagship at the Battle of Manila Bay, and World War II Submarine Becuna. The Museum is the premier, year- round, family-friendly destination that has become a key component of Philadelphia's waterfront renaissance on Penn's Landing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 1, Description of Organization Mission, continued:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Museum will take a leadership role in the future of the Delaware River Watershed including awareness of and advocacy for our valuable natural resources and the economic development of the region. As a good community steward, the Museum will provide an education and career awareness "Ladder of Opportunity" to students in our region and through them generational awareness of our water resources to all of our citizens. Our goal is to create understanding of the historical, economic, and environmental importance of the Delaware River Watershed. The Museum is home to one of the largest maritime art and artifact collections in North America, documenting the local and regional history of the Ports of Philadelphia, and two National Historic Landmark ships, Cruiser Olympia, Admiral Dewey's flagship at the Battle of Manila Bay, and World War II Submarine Becuna. The Museum is the premier, year- round, family-friendly destination that has become a key component of Philadelphia's waterfront renaissance on Penn's Landing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization distributes an electronic copy of a draft of Form 990 for review by its audit and finance committee. A meeting is then held, if necessary, to discuss any issues or questions with the draft return. Once all issues have been resolved, the audit and finance committee approves the final Form 990 for filing. The organization distributes an electronic copy of a draft of Form 990 to the full board for review and approval for filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>All board members of the organization are required to sign a conflict of interest statement disclosing any potential conflicts annually. Any conflicts would be brought to the attention of the board of port wardens and a decision made as to whether the conflict interferes with his/her duties. If allowed to remain they would be ineligible to be involved in the decision making or voting process that involves the conflict. During 2020, all individuals completed the required forms on a timely basis.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The board of port wardens approves the salaries of the President and key employees through the budget process. The organization uses comparative data from outside sources to also compare their salaries to industry ranges. This process was last undertaken in 2015 for the Chief Executive Officer.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization makes its governing documents available to the general public on its website and upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XII, Line 2c:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Organization had not changed its oversight and selection process involving its independent auditor during the tax year.</ExplanationTxt>
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          <AddressLine1Txt>211 S Columbus Blvd</AddressLine1Txt>
          <CityNm>Philadelphia</CityNm>
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