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        <UnrelatedBusinessRevenueAmt>4459</UnrelatedBusinessRevenueAmt>
      </NetRentalIncomeOrLossGrp>
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      <FundraisingDirectExpensesAmt>6432</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>8177</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <GrossSalesOfInventoryAmt>1714</GrossSalesOfInventoryAmt>
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      <NetIncomeOrLossGrp>
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        <RelatedOrExemptFuncIncomeAmt>1614</RelatedOrExemptFuncIncomeAmt>
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      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>174797</TotalRevenueColumnAmt>
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        <UnrelatedBusinessRevenueAmt>4459</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
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      </OtherSalariesAndWagesGrp>
      <PayrollTaxesGrp>
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        <ProgramServicesAmt>6183</ProgramServicesAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>2245</TotalAmt>
        <ManagementAndGeneralAmt>2245</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <AdvertisingGrp>
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      <OfficeExpensesGrp>
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      <OtherExpensesGrp>
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        <ProgramServicesAmt>2350</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>Living History Days Festi</Desc>
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      </OtherExpensesGrp>
      <OtherExpensesGrp>
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        <ManagementAndGeneralAmt>64550</ManagementAndGeneralAmt>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>76776</EOYAmt>
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        <EOYAmt>773713</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>773713</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>-99455</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>111983</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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        <CurrentTaxYearMinus1YearAmt>254671</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearAmt>142714</CurrentTaxYearAmt>
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      <SubstAndDsqlfyPrsnsTotGrp>
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        <CurrentTaxYearAmt>174797</CurrentTaxYearAmt>
        <TotalAmt>1071182</TotalAmt>
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      <PublicSupportCY509Pct>0.91670</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.94298</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.07000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.05393</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part III,ln 12</FormAndLineReferenceDesc>
        <ExplanationTxt>book/gift sales, royalties,copy fees, concessions,</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part III,ln 12</FormAndLineReferenceDesc>
        <ExplanationTxt>registration fees.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="IRS990ScheduleD-164-Copy1">
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollUsedScholarlyRsrchInd>X</CollUsedScholarlyRsrchInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
      <LandGrp>
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        <BookValueAmt>30900</BookValueAmt>
      </LandGrp>
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        <BookValueAmt>278100</BookValueAmt>
      </BuildingsGrp>
      <TotalBookValueLandBuildingsAmt>309000</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>Insurance claims deposit</Desc>
        <BookValueAmt>111983</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>111983</TotalBookValueOtherAssetsAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 1a-Text in footnote regarding SFAS 116 (ASC 958)</FormAndLineReferenceDesc>
        <ExplanationTxt>MCHS did not prepare formal financial statements fr 2024. By practice, theSocietyhas elected to not place a fair market value on items accepted into itscollection of historical tresures pertaining to Madison County, IL, its residents, currentcurrent and past.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 4-Description organization's collections</FormAndLineReferenceDesc>
        <ExplanationTxt>The MCHS collection contains thousands of artifacts, records, photos, andother materials representing significant events in the life of residentsof Madison County Illinois and surrounding area for over 200 years. Thesewritten records, books, and other items document the cultural, personal,and economic lives of those gone before us; thus enriching the lives ofcurrent and future inhabitants of the area. Docent guided tours andeducational outreach programs further the mission of Opening Doors toMadison County History.</ExplanationTxt>
      </SupplementalInformationDetail>
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        <GrossRevenueEvent1Amt>4941</GrossRevenueEvent1Amt>
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        <FoodAndBeverageEvent1Amt>310</FoodAndBeverageEvent1Amt>
        <OtherDirectExpensesEvent1Amt>1035</OtherDirectExpensesEvent1Amt>
        <Event2Nm>DineHistory</Event2Nm>
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        <GrossRevenueEvent2Amt>6747</GrossRevenueEvent2Amt>
        <RentFacilityCostsEvent2Amt>500</RentFacilityCostsEvent2Amt>
        <FoodAndBeverageEvent2Amt>2988</FoodAndBeverageEvent2Amt>
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        <GrossReceiptsTotalAmt>14153</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>2465</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>11688</GrossRevenueTotalEventsAmt>
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        <RentFcltyCostsTotalEventsAmt>950</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>3298</FoodAndBeverageTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>1585</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>6433</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>5255</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
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      <BooksAndPublicationsGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <NoncashContributionsRptF990Amt>0</NoncashContributionsRptF990Amt>
      </BooksAndPublicationsGrp>
      <ClothingAndHouseholdGoodsGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <NoncashContributionsRptF990Amt>0</NoncashContributionsRptF990Amt>
      </ClothingAndHouseholdGoodsGrp>
      <CollectiblesGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <NoncashContributionsRptF990Amt>0</NoncashContributionsRptF990Amt>
      </CollectiblesGrp>
      <HistoricalArtifactsGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>90</ContributionCnt>
        <NoncashContributionsRptF990Amt>0</NoncashContributionsRptF990Amt>
      </HistoricalArtifactsGrp>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>true</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>P1, Col B</FormAndLineReferenceDesc>
        <ExplanationTxt>The information reports</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>P1, Col B</FormAndLineReferenceDesc>
        <ExplanationTxt>the number of contrib-</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>P1, Col B</FormAndLineReferenceDesc>
        <ExplanationTxt>utions received</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>P1, Ln 33</FormAndLineReferenceDesc>
        <ExplanationTxt>The Society doesn't place</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>P1, Ln 33</FormAndLineReferenceDesc>
        <ExplanationTxt>a monetary value on items</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="IRS990ScheduleO-183-Copy1">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>All members are equal. There are no classes.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>All Board members receive an electronic copy. The completed Form 990 is</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>discussed in detail at a regularly scheduled meeting of the Board of Direct</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>All records are open to the public upon request to the Director of Operatio</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Insurance claims deposits</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII Line 1</FormAndLineReferenceDesc>
        <ExplanationTxt>The 2018 Capital Campaign is completed. Pledges Receivable balance is now</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII Line 1</FormAndLineReferenceDesc>
        <ExplanationTxt>zero. The accounting system no longer records pledges receivable.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part IX, Ln 24d</FormAndLineReferenceDesc>
        <ExplanationTxt>During 2016, the Society implemented the first phase of its long</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part IX, Ln 24d</FormAndLineReferenceDesc>
        <ExplanationTxt>range plan to renovate the historical site known as the Weir</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part IX, Ln 24d</FormAndLineReferenceDesc>
        <ExplanationTxt>House functioning as the museum.The Society continues toward</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part IX, Ln 24d</FormAndLineReferenceDesc>
        <ExplanationTxt>completing the renovation.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Ln 1</FormAndLineReferenceDesc>
        <ExplanationTxt>Effective December 1, 2021, MCHS was no longer supported by</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Ln 1</FormAndLineReferenceDesc>
        <ExplanationTxt>Madison County Government and became an independently funded</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Ln 1</FormAndLineReferenceDesc>
        <ExplanationTxt>entity. The financial information in the 2022 and 2023</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Ln 1</FormAndLineReferenceDesc>
        <ExplanationTxt>IRS Form 990 reflects the transfer and transition to an</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Ln 1</FormAndLineReferenceDesc>
        <ExplanationTxt>independent non-government funded entity. General fund raising</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Ln 1</FormAndLineReferenceDesc>
        <ExplanationTxt>is emphasized. Grants from all sources are applied for.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>