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        <ProgramServicesAmt>10021</ProgramServicesAmt>
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        <Desc>REPAIRS &amp; MAINT.</Desc>
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        <ProgramServicesAmt>7014</ProgramServicesAmt>
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        <ProgramServicesAmt>9771</ProgramServicesAmt>
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        <FundraisingAmt>6202</FundraisingAmt>
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        <ProgramServicesAmt>68418</ProgramServicesAmt>
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      <LandBldgEquipAccumDeprecAmt>203751</LandBldgEquipAccumDeprecAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>1424</EOYAmt>
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      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
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        <EOYAmt>1436138</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-41883</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>4922</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingOtherInd methodOfAccountingOtherDesc="MODIFIED CASH">X</MethodOfAccountingOtherInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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        <CurrentTaxYearMinus3YearsAmt>34245</CurrentTaxYearMinus3YearsAmt>
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        <CurrentTaxYearMinus1YearAmt>27533</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>27512</CurrentTaxYearAmt>
        <TotalAmt>125342</TotalAmt>
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      <PublicSupportTotal170Amt>125342</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>73367</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>-25764</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>-30083</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>32911</CurrentTaxYearMinus1YearAmt>
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        <TotalAmt>55374</TotalAmt>
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      <GrossReceiptsRltdActivitiesAmt>190310</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.69360</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.54950</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
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    <IRS990ScheduleD documentId="RetDoc3">
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>146654</OtherCostOrOtherBasisAmt>
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      <TotalBookValueLandBuildingsAmt>53110</TotalBookValueLandBuildingsAmt>
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        <Desc>HISTORICAL COLLECTIONS</Desc>
        <BookValueAmt>763081</BookValueAmt>
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        <Desc>TAX WITHHOLDINGS</Desc>
        <Amt>1424</Amt>
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      <TotalLiabilityAmt>1424</TotalLiabilityAmt>
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        <Event1Nm>OTHER FUNDRAISI</Event1Nm>
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        <GrossRevenueEvent1Amt>13123</GrossRevenueEvent1Amt>
        <Event2Nm>CANDLELIGHT TOU</Event2Nm>
        <GrossReceiptsEvent2Amt>12519</GrossReceiptsEvent2Amt>
        <GrossRevenueEvent2Amt>12519</GrossRevenueEvent2Amt>
        <GrossReceiptsTotalAmt>25642</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>25642</GrossRevenueTotalEventsAmt>
        <NetIncomeSummaryAmt>25642</NetIncomeSummaryAmt>
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    <IRS990ScheduleO documentId="RetDoc5">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 1, PART I, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>LABOR ASSOCIATED WITH THE OPERATIONS OF THE BLENNERHASSET HISTORICAL FOUNDATION, INC. AND ITS PROGRAMS IS PRIMARILY PROVIDED BY VOLUNTEERS. THE FOUNDATION HAS ORGAINIZED A PROGRAM WHEREBY VOLUNTEER SERVICES ARE UTILIZED TO MEET CERTAIN OF THE ORGANIZATION'S ROUTINE HUMAN RESOURCE REQUIREMENTS. SUCH SERVICES PROVIDED BY VOLUNTEERS INCLUDE ISLAND AND MUSEUM TOURS, AS WELL AS OPERATING THE RETAIL GIFT SHOP. ALL VOLUNTEERS REQUIRE SPECIAL TRAINING RELATED TO THE HISTORICAL AND CULTURAL SIGNIFICANCE OF BLENNERHASSETT ISLAND. TOTAL DONATED HOURS HAVE BEEN ESTIMATED AT 15,000 FOR THE YEAR ENDING DECEMBER 31, 2017.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A DRAFT COPY OF THE FORM 990 IS MADE AVAILABLE TO THE BOARD MEMBERS FOR REVIEW BEFORE THE CHAIRMAN AND TREASURER ULTIMATLEY SIGN-OFF ON THE FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION'S CONFLICT OF INTEREST POLICY IS AT A MINIMUM REVIEWED AND DISCUSSED ANNUALLY WITH ALL OFFICERS, BOARD MEMBERS, AND EMPLOYEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION DOES NOT COMPENSATE DIRECTORS, OFFICERS OR "TOP OFFICIALS".</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION DOES NOT COMPENSATE DIRECTORS, OFFICERS OR "TOP OFFICIALS". THE COMPENSATION OF EMPLOYEES IS DISCUSSED AND REVIEWED ANNUALLY BY THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING DOCUMENTS ARE MADE AVAILABLE UPON WRITTEN REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 24E</FormAndLineReferenceDesc>
        <ExplanationTxt>FUNDRAISING EXPENSES 0 0 6,202 INSURANCE 549 4,939 0 OFFICE SUPPLIES 425 3,822 0 AGENCY FEES 372 3,352 0 COSTUME REPAIRS &amp; MAINT. 2,819 705 0 MISCELLANEOUS 1,735 1,736 0 VOLUNTEER APPRECIATION 1,619 1,620 0 BANK FEES/CC SVC CHARGES 0 3,060 0 SUPPLIES 879 879 0 POSTAGE &amp; FREIGHT 130 1,172 0 DUES &amp; SUBSCRIPTIONS 114 1,026 0 INTERNET EXPENSE 523 523 0 TELEPHONE 514 515 0 TAXES &amp; LICENSES 92 825 0 TOTAL 9,771 24,174 6,202</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9</FormAndLineReferenceDesc>
        <ExplanationTxt>OVERSTATED EXPENSE IN 2016 4,920 ROUNDING ADJUSTMENT 2 TOTAL 4,922</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII</FormAndLineReferenceDesc>
        <ExplanationTxt>(1) MODIFIED CASH BASIS OF ACCOUNTING. (2A) THE ORGANIZATION IS NOT PART OF A CONSOLIDATED GROUP.</ExplanationTxt>
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</Return>