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        <FormAndLineReferenceDesc>Part III, Line 1a: If organization elected under SFAS 116 to not report are, historical treasures, o</FormAndLineReferenceDesc>
        <ExplanationTxt>The Henry Ferguson Museum maintains art collections that have been donated to the museum by fishers island residents. The art work is historically significant representation of the history of the fishers island community. The Henry Ferguson Museum reports on a modified cash basis. As such, art work that has been donated to the museum are not reported on the revenue statement or balance sheet.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 4: Description of organization's collections and how it furthers its purpose.</FormAndLineReferenceDesc>
        <ExplanationTxt>The Museum displays collections pertaining to local flora and fauna, history and archaeology for the education and benefit of the general public without charge.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X : FIN48 Footnote</FormAndLineReferenceDesc>
        <ExplanationTxt>The Organization qualifies as a public charity under Section 501(c)(3) of the Internal Revenue Code and therefore, is exempt from federal and state income taxes on exempt function income. Consequently, no provision for income taxes has been made in the accompanying financial statements.The Organization did not recognize any liability for uncertain tax positions as defined by accounting principles generally accepted in the United States of America.The federal tax return of the Organization for the year ended December 31, 2021 is subject to examination by the Internal Revenue Service, generally for three years after it is filed.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="21013475" softwareVersionNum="2021v4.1">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 2: Description of Business or Family Relationship of Officers, Directors, Et</FormAndLineReferenceDesc>
        <ExplanationTxt>Elizabeth McCance, Henry L. Ferguson III, Marion Ferguson Briggs, and Thomas Parker are all cousins. Heather Fergsuon Burnham is a cousin of all of the above, with the exception of Henry L. Ferguson III, who is her father.Jeffrey Edwards is a cousin, once removed, of Ken Edwards Sr., both are Board Members.B. Scott Reid is a son of L. Bagley Reid. Both are Board Members.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b: Form 990 Review Process</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990 is reviewed by President, Treasurer and Executive Director.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</FormAndLineReferenceDesc>
        <ExplanationTxt>Upon Request and Guidestar.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
