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          <BusinessName>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>1</AccountantCompileOrReviewInd>
      <AcctCompileOrReviewBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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        <CurrentTaxYearMinus2YearsAmt>1474006</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>541806</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>878066</CurrentTaxYearAmt>
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      <OtherLiabilitiesOrgGrp>
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      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 1A:</FormAndLineReferenceDesc>
        <ExplanationTxt>HISTORICAL WORKS OF ART, ARTIFACTS, AND DOCUMENTS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>HISTORICAL WORKS OF ART, ARTIFACTS, AND DOCUMENTS.</ExplanationTxt>
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      <SubstantiationRequiredInd>0</SubstantiationRequiredInd>
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      <CompensationSurveyInd>X</CompensationSurveyInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>BARBARA MANGUM, IN HER CAREER AS AN ART CONSERVATOR AND PRESIDENT OF SCULPTURE AND DECORATIVE ARTS CONSERVATION SERVICES LLC WAS COMPENSATED $1,400 FOR HER TIME EMPLOYED AS A CONSULTANT IN GRANT WRITING FOR TWO GRANTS.</ExplanationTxt>
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    <IRS990ScheduleL documentId="RetDoc1042800001">
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        <RelationshipDescriptionTxt>PRESIDENT OF THE BOARD</RelationshipDescriptionTxt>
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        <TransactionDesc>BARBARA MANGUM, IN HER CAREER AS AN ART CONSERVATOR AND PRESIDENT OF SCULPTURE AND DECORATIVE ARTS CONSERVATION SERVICES LLC WAS COMPENSATED FOR HER TIME EMPLOYED AS A CONSULTANT IN GRANT WRITING FOR TWO GRANTS.</TransactionDesc>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>EVELYN BATTINELLI, EXECUTIVE DIRECTOR, SECRETARY &amp; TRUSTEE IS TRUSTEE REGINA PISA'S AUNT.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAD MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOMERVILLE HISTORICAL SOCIETY IS A MEMBERSHIP ORGANIZATION GOVERNED BY A BOARD OF TUSTEES. THE BOARD OF TRUSTEES IS ELECTED ANNUALLY BY A QUORUM OF THE MEMBERS AT THE ANNUAL MEETING. MEMBERS ARE THOSE INDIVIDUALS WHO PAY ANNUAL DUES</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>MONTHLY BOARD MEETINGS MINUTES WERE WRITTEN UP TO DOCUMENT THE ACTIONS UNDERTAKEN DURING THE YEAR</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>YES THE GOVERNING BODY REVIEWED FORM 990 BEFORE BEING FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD MONITORED THE ORGANIZATIONS WRITTEN POLICIES AND MADE SURE THEY WERE FOLLOWED.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS FOR DETERMINING COMPENSATION FOR ALISON DRASNER INCLUDED REVIEW BY INDEPENDENT PEOPLE. REVIEW OF HER ABILITIES AND A DECISION BY THE BOARD MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>UPON REQUEST.</ExplanationTxt>
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</Return>