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        <PersonNm>Donna Odom</PersonNm>
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        <PersonNm>Dianne Schmitigal</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Shannon White</PersonNm>
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      <Form990PartVIISectionAGrp>
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      <GrantsToDomesticOrgsGrp>
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      <TotalRevEtcAuditedFinclStmtAmt>2602232</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>170503</NetUnrealizedGainsInvstAmt>
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      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>2431729</TotalRevenuePerForm990Amt>
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      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
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      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
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    <IRS990ScheduleJ documentId="RetDoc1042400001">
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      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
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      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
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        <PersonNm>Larry J Wagenaar</PersonNm>
        <TitleTxt>Executive Director</TitleTxt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>The Historical Society of Michigan is a member supported organization. Individuals pay a fee to become members and then receive publications from the organization.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Historical Society of Michigan members are asked to submit names and then the board's nomination committee pools these suggestions with prospects developed by the board to determine a slate of nominees for election by the membership.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 is reviewed by management and the full Board of Trustees prior to filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>CEO salary is governed by a contract, which provides for a 3% annual increase unless the board decides otherwise. All staff are reviewed and salaries/pay rates adjusted annually.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization's governing documents are available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
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