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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 1a:</FormAndLineReferenceDesc>
        <ExplanationTxt>In conformity with the practice followed by most museums, historical objects purchased and donated are not capitalized. Collections that belong to the Museum include antique dolls, dollhouses and other toys. Part of the Museum is a 17th century house complete with period furnishings. The cost of all objects purchased, together with the value of objects acquired by gift if any, less proceeds from deaccessions of objects, is reported as a separate expense.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Museum's primary objective is long-term capital appreciation which together with income will provide for the growth of the endowment while allowing support for current activities. The Museum has adopted a spending policy on board designated net assets whereby the amount available for distribution to operations will be a percentage of the average market value of these board designated net assets for the preceding twelve (12) quarters calculated as of June 30 of the current fiscal year. The Museum elected to use a percentagee of 4.0% for the year ended June 30, 2015. The amount available for distribution to operations, as directed by the donor, on permanently restricted net assets will be the greater of (1) 4% of the average market value of the permanently restricted net assets for the preceding twelve (12) quarters calculated as of June 30 of the current fiscal year, or (2) the earned income for the current fiscal year (further defined by the Wenham Museum Board of Trustees to be the interest, dividends, capital gains distributions, and net realized and unrealized capital gains (losses) earned by the permanently restricted net assets).</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>In determining the recognition of uncertain tax positions, the Museum applies a more-likely-than-not recognition threshold and determines the measurement of uncertain tax positions considering the amounts and probabilities of the outcomes that could be realized upon ultimate settlement with taxing authorities. As of June 30, 2015, the Museum has no uncertain tax positions that qualify for either recognition or disclosure in the financial statements.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <RentFcltyCostsTotalEventsAmt>7847</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>10715</FoodAndBeverageTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>43428</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>61990</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>16603</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>Trustees Derek Smith and Rebecca Smith are married.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>The Finance Committee reviews the Form 990 during one of their meetings prior to filing the Form 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Each year the policy is discussed with the Trustees. Every other year, or upon appointment of a new Trustee, the Trustees are required to provide written confirmation about their knowledge of the policy.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board of Trustees, in executive session not including the Executive Director, discusses and approves the Executive Director's salary. They also consider whether the salary would be comparable to other Executive Director positions at comparable museums.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The governing documents, conflict of interest policy, financial statements and Form 990 are immediately made available to the public by calling the Museum's office, walking into the Museum's office or mailing in a request to the Museum. The Form 990 and financial statements are also available through the Massachusetts Attoney General's office/website.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>