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        <FormAndLineReferenceDesc>III 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>TERMS FOR NOT REPORTING ASSETS PER ASC 958 - IN CONFORMITY WITH COMMON INDUSTRY PRACTICE, ARTIFACTS ARE NOT INCLUDED IN THE STATEMENTS OF FINANCIAL POSITION. ARTIFACTS ARE INVENTORIED ON AN ANNUAL BASIS. THE MOST RECENT SELF-APPRAISAL OF THE CENTERS COLLECTION OF ARTIFACTS RESULTED IN AN ESTIMATED VALUE OF APPROXIMATELY 2,154,000. SUBSTANTIALLY ALL ARTIFACTS ARE DONATED OR BORROWED AND MAINTAINED EXCUSIVELY FOR EDUCATIONAL, RESEARCH AND CURATORIAL PURPOSES. EACH OF THE ITEMS IS CATALOGED, PRESERVED AND CARED FOR, AND ACTIVITIES VERIFYING THEIR EXISTENCE AND ASSESSING THEIR CONDITION ARE PERFORMED CONTINUOUSLY. ARTIFACT DISPOSITIONS ARE SUBJECT TO THE CENTERS COLLECTION MANAGEMENT POLICY, ADOPTED BY THE BOARD OF TRUSTEES IN 1986. THIS POLICY REQUIRES PROCEEDS FROM ANY ARTIFACT SALE TO BE DESIGNATED FOR THE ACQUISTION, RESTORATION, OR PRESERVATION OF OTHER COLLECTION ITEMS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>III 4</FormAndLineReferenceDesc>
        <ExplanationTxt>COLLECTIONS AND RELATION TO EXEMPT PURPOSE - THE ORGANIZATIONS COLLECTIONS CONTAIN ARTIFACTS FROM THE PREHISTORIC COPPER CULTURE THROUGH CONTEMPORARY TIMES. THE JM LONGYEAR RESEARCH LIBRARY CONTAINS MORE THAN 16,000 TITLES PLUS EXTENSIVE ARCHIVAL MATERIALS, NEARLY 100,000 PHOTOGRAPHS AND HUNDREDS OF HISTORIC MAPS. THESE COLLECTIONS FURTHER OUR EXEMPT PURPOSE BECAUSE THROUGH THEIR USE WE ARE ABLE TO PRESERVE AND INTERPRET LOCAL HISTORY AND HERITAGE IN KEEPING WITH OUR MISSION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>V 4</FormAndLineReferenceDesc>
        <ExplanationTxt>INTENDED USES FOR ENDOWMENT FUNDS - THE BOARD DESIGNATED ENDOWMENT FUNDS ARE AVAILABLE FOR THE DAILY OPERATIONS OF THE MUSEUM.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>X 2</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CENTER IS A NONPROFIT CORPORATION EXEMPT FROM FEDERAL INCOME TAXES UNDER SECTION 501 c3 OF THE INTERNAL REVENUE CODE IS CLASSIFIED AS AN ORGANIZATION OTHER THAN A PRIVATE FOUNDATION. THE CENTER FILES FORM 990 WITH THE INTERNAL REVENUE SERVICE. GENERALLY THE PRIOR THREE YEARS REMAIN OPEN TO EXAMINATION. THE CENTER BELIEVES THAT ITS INCOME TAX FILING POSITIONS WILL BE SUSTAINED UPON EXAMINATION AND DOES NOT ANTICIPATE ANY ADJUSTMENTS THAT WOULD RESULT IN A MATERIAL ADVERSE EFFECT ON THE CENTERS FINANCIAL CONDITION, RESULTS OF OPERATIONS, OR CASH FLOWS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>XI 2d</FormAndLineReferenceDesc>
        <ExplanationTxt>CERTAIN EXPENSES ARE DISCLOSED ON PART VIII THAT ARE NOT NETTED AGAINST REVENUES ON THE AUDITED FINANCIAL STATEMENTS. THOSE EXPENSES ARE RENTAL EXPENSES OF 17,600 FUNDRAISING EXPENSES OF 4,862 AND COST OF GOODS SOLD OF 22,372 FOR TOTAL EXPENSES 44,834.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>ROUNDING ADJUSTMENT</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>XII 2d</FormAndLineReferenceDesc>
        <ExplanationTxt>CERTAIN EXPENSES ARE DISCLOSED ON PART VIII THAT INCLUDED WITH EXPENSES ON THE AUDITED FINANCIAL STATEMENTS. THOSE EXPENSES ARE RENTAL EXPENSES OF 17,600 FUNDRAISING EXPENSES OF 4,862 AND COST OF GOODS SOLD OF 22,372 FOR TOTAL EXPENSES 44,834.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>XII 4b</FormAndLineReferenceDesc>
        <ExplanationTxt>ROUNDING ADJUSTMENT</ExplanationTxt>
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      <FundraisingEventInformationGrp>
        <Event1Nm>LEGENDS LORE</Event1Nm>
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        <GrossRevenueEvent1Amt>12476</GrossRevenueEvent1Amt>
        <RentFacilityCostsEvent1Amt>1365</RentFacilityCostsEvent1Amt>
        <OtherDirectExpensesEvent1Amt>638</OtherDirectExpensesEvent1Amt>
        <Event2Nm>THE PERAS TOUR</Event2Nm>
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        <GrossRevenueEvent2Amt>10528</GrossRevenueEvent2Amt>
        <FoodAndBeverageEvent2Amt>1871</FoodAndBeverageEvent2Amt>
        <OtherDirectExpensesEvent2Amt>200</OtherDirectExpensesEvent2Amt>
        <GrossReceiptsTotalAmt>23004</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>23004</GrossRevenueTotalEventsAmt>
        <RentFcltyCostsTotalEventsAmt>1365</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>1871</FoodAndBeverageTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>838</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>4074</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>18930</NetIncomeSummaryAmt>
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    <IRS990ScheduleM documentId="990M" softwareId="24019898" softwareVersionNum="24.0.1.0">
      <WorksOfArtGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>2</ContributionCnt>
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      <BooksAndPublicationsGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
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        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>2</ContributionCnt>
        <NoncashContributionsRptF990Amt>598933</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
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      <HistoricalArtifactsGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>88</ContributionCnt>
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        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>HISTORIC PHOTOS</Desc>
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      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>true</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
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    <IRS990ScheduleO documentId="990O" softwareId="24019898" softwareVersionNum="24.0.1.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>CLASSES OF MEMBERS OR STOCKHOLDERS - THE ORGANIZATION HAS ONE CLASS OF MEMBERS WHO ALL HAVE EQUAL VOTING RIGHTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>ELECTION OF MEMBERS AND THEIR RIGHTS - MEMBERS ELECT THE BOARD OF TRUSTEES AT THE ANNUAL MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>DOCUMENTATION BY COMMITTEE EXPLANATION - NO COMMITTEES HAVE AUTHORITY TO ACT ON BEHALF OF THE BOARD OF TRUSTEES.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>ORGANIZATIONS PROCESS TO REVIEW FORM 990 - THE FORM 990 IS REVIEWED BY THE BOARD PRESIDENT AND TREASURER/HEAD OF THE FINANCE COMMITTEE BEFORE IT IS FILED. THE TREASURER REPORTS THE RESULTS OF THE REVIEW TO THE BOARD AT THE NEXT MONTHLY BOARD MEETING. IF THERE ARE ANY QUESTIONS, THE BOARD WILL REVIEW THE FORM 990.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ENFORCEMENT OF CONFLICTS POLICY - CODE OF ETHICS/CONFLICT OF INTEREST QUESTIONNAIRE IS REQUIRED TO BE COMPLETED ANNUALLY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION PROCESS FOR TOP OFFICIAL - THE EXECUTIVE DIRECTORS SALARY IS REVIEWED AND APPROVED BY THE BOARD OF TRUSTEES AND THE DELIBERATIONS ARE RECORDED IN THE MEETING MINUTES. ON OCCASION THE BOARD UTILIZES A FIRM THAT DOES COMPARATIVE COMPENSATIONS ANALYSES OF LOCAL NONPROFIT ENTITIES.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS DISCLOSURE EXPLANATION - DOCUMENTS AVAILABLE UPON REQUEST.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part X, Line 12</FormAndLineReferenceDesc>
        <ExplanationTxt>AMENDMENT EXPLANATION - THE HISTORY CENTER ACCOUNTS FOR ITS INVESTMENTS IN PARTNERSHIPS USING THE EQUITY METHOD OF ACCOUNTING. AFTER THE ISSUANCE OF THE HISTORY CENTERS AND JML HEIRS LLCS AUDITED FINANCIAL STATEMENTS FOR YEAR ENDING DECEMBER 31 2024 MATERIAL CORRECTIONS AND ADJUSTMENTS WERE MADE TO JML HEIRS 2024 AUDITED FINANCIAL STATEMENTS DUE TO A SALE CONTINGENCY NOT REPORTED AS INCOME AND THE REDUCTION OF THE CARRYING VALUE OF ONE OF JML HEIRS EQUITY INVESTMENTS. THESE ADJUSTMENTS HAD A MATERIAL EFFECT ON THE HISTORY CENTER WHICH REQUIRES A RESTATEMENT OF THEIR DECEMBER 31 2024 FINANCIAL STATEMENTS. THE AMOUNT OF THE ADJUSTMENT TO THE HISTORY WAS 674,908.</ExplanationTxt>
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</Return>