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      <NetUnrealizedGainsInvstAmt>-34493</NetUnrealizedGainsInvstAmt>
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      <RevenueNotReportedFinclStmtAmt>14758</RevenueNotReportedFinclStmtAmt>
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      <DonatedServicesUseFcltsAmt>51216</DonatedServicesUseFcltsAmt>
      <ExpensesNotReportedAmt>51216</ExpensesNotReportedAmt>
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      <InvestmentExpensesNotIncld2Amt>14758</InvestmentExpensesNotIncld2Amt>
      <OtherExpensesNotIncludedAmt>21400</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>36158</ExpensesNotRptFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION ACCOUNTS FOR UNCERTAINTY IN INCOME TAXES IN ACCORDANCE WITH ASC TOPIC, INCOME TAXES. THIS STANDARD CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN TAX POSITIONS AND PRESCRIBES A RECOGNITION THRESHOLD AND MEASUREMENT ATTRIBUTE FOR THE FINANCIAL STATEMENTS REGARDING A TAX POSITION TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN. THE ORGANIZATION HAS DETERMINED THAT THERE ARE NO UNCERTAIN TAX POSITIONS WHICH QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS AT DECEMBER 31, 2014.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>UBIT TAXES NETTED WITH MERCHANDISING REVENUE, NET</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>UBIT TAXES</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>COLLECTION ITEMS CONSIST OF HISTORICAL ARTIFACTS AND ART OBJECTS THAT ARE HELD FOR EDUCATIONAL 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. COLLECTION ITEMS ACQUIRED EITHER THROUGH PURCHASE OR DONATION ARE NOT CAPITALIZED. PURCHASES OF COLLECTION ITEMS ARE RECORDED AS DECREASES IN UNRESTRICTED NET ASSETS IF PURCHASED WITH UNRESTRICTED NET ASSETS AND DECREASES IN TEMPORARILY OR PERMANENTLY RESTRICTED NET ASSETS IF PURCHASED WITH DONOR-RESTRICTED ASSETS. CONTRIBUTIONS OF COLLECTION ITEMS ARE NOT RECOGNIZED IN THE STATEMENT OF ACTIVITIES AND CHANGES IN NET ASSETS. PROCEEDS FROM INSURANCE RECOVERIES ARE REFLECTED IN THE STATEMENT OF ACTIVITIES AND CHANGES IN NET ASSETS BASED ON THE ABSENCE OR EXISTENCE AND NATURE OF DONOR IMPOSED RESTRICTIONS. THERE WAS NO REVENUE FROM INSURANCE RECOVERIES DURING THE YEAR ENDED DECEMBER 31, 2014.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOSTONIAN SOCIETY'S COLLECTION CONSISTS OF OVER 100,000 ITEMS IN A VARIETY OF MEDIA, INCLUDING OBJECTS, MANUSCRIPTS, AND BOOKS. WHILE ONLY A SMALL PERCENTAGE OF ITEMS ARE AVAILABLE FOR PUBLIC VIEWING INSIDE THE OLD STATE HOUSE MUSEUM, THOUSANDS OF OTHERS ARE VIEWABLE WORLDWIDE ON THE MUSEUM'S ONLINE DATABASES. ADDITIONALLY, THE SOCIETY'S RESEARCH LIBRARY IN DOWNTOWN BOSTON IS AVAILABLE TO ALL RESEARCHERS BY APPOINTMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S ENDOWMENT CONSISTS OF VARIOUS FUNDS ESTABLISHED FOR A VARIETY OF PURPOSES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>2</ContributionCnt>
        <NoncashContributionsRptF990Amt>39207</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11</FormAndLineReferenceDesc>
        <ExplanationTxt>WHEN THE 990 HAS BEEN COMPLETED IT IS E-MAILED TO EACH MEMBER OF THE BOARD OF DIRECTORS FOR HIS/HER REVIEW AND COMMENTS. THE TREASURER CLEARS ALL COMMENTS, THEN SIGNS AND FILES THE TAX RETURNS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD APPOINTS A SUBCOMMITTEE WHICH REVIEWS THE EXECUTIVE DIRECTOR'S PERFORMANCE AND MAKES A RECOMMENDATION AS TO SALARY AND BENEFIT AMOUNTS. THE DIRECTOR OF FINANCE IS CONSULTED TO ENSURE THAT ANY CHANGE TO THE EXECUTIVE DIRECTOR'S COMPENSATION IS EQUITABLE IN TERMS OF CHANGES TO OTHER EMPLOYEE COMPENSATION. THE DIRECTOR OF FINANCE ALSO COMPARES THE EXECUTIVE DIRECTOR'S SALARY TO INDUSTRY SURVEYS SUCH AS THE NEMA SURVEY AND AD HOC ANALYSIS DONE BY THE HR CONSORTIUM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>FINANCIAL STATEMENTS, FORM 990 AND MA FORM PC ARE AVAILABLE ON THE MA ATTORNEY GENERAL'S WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRIOR YEAR ROUNDING ADJUSTMENT -2.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>NO CHANGES FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>