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        <ExplanationTxt>Music &amp; More Program 6705.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Trees &amp; Green Project 7493.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Travel 82.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 20</FormAndLineReferenceDesc>
        <ExplanationTxt>Prior Year Adjustments 1894.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 20</FormAndLineReferenceDesc>
        <ExplanationTxt>Unrealized Gains/Losses -102.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part II, Line 26</FormAndLineReferenceDesc>
        <ExplanationTxt>Sales Tax Liability 102.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <ReasonableCauseExplanation documentId="ReasonableCauseExplanation-01">
      <ExplanationTxt>The Jefferson Historical Society is a small, volunteer run nonprofit organization located in rural Upstate New York. The Form 990-EZ for the 2024 tax years was filed late due to a transition between accounting firms. During this change, the required extension (Form 8868) was inadvertently not filed nor was the return filed by the due date. As soon as the oversight was discovered, the return was promptly filed. The delay was unintentional, and the Society has since implemented internal procedures to confirm filing responsibilities and dealines with its accountant to prevent recurrence. We respectfully request that any penalties for late filing be abated based on reasonable cause.</ExplanationTxt>
    </ReasonableCauseExplanation>
  </ReturnData>
</Return>