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        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>BYLAWS FOR THE MARY JULIA KOCH FOUNDATION WERE UPDATED TO ADDRESS SUCCESSOR MEMBERS. THE CERTIFICATE OF INCORPORATION WAS ALSO UPDATED TO CLARIFY THE PROCESS TO AMEND BYLAWS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MARY JULIA KOCH FOUNDATION HAS ONE MEMBER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBER HAS THE POWER TO APPOINT ADDITIONAL MEMBERS OF THE GOVERNING BODY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBER HAS THE POWER, AMONG OTHER THINGS, TO AMEND THE BYLAWS AND THE CERTIFICATE OF INCORPORATION AND ELECT AND REMOVE DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 8b</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MARY JULIA KOCH FOUNDATION ONLY HAS ONE DIRECTOR, THEREFORE, THERE ARE NO COMMITTEES WITHIN THE BOARD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>AN ACCOUNTING PROFESSIONAL PREPARED AND REVIEWED THE FORM 990. A FULL DRAFT OF THE 990 ALONG WITH ALL REQUIRED SCHEDULES IS PROVIDED TO INTERNAL MANAGEMENT AND LEGAL COUNSEL FOR REVIEW. ALL QUESTIONS ARE ADDRESSED AND ANY MODIFICATIONS ARE MADE, IF NECESSARY. A FULL COPY OF THE RETURN WAS PROVIDED TO THE VOTING MEMBER OF THE BOARD BEFORE FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECTORS, OFFICERS, AND EMPLOYEES ARE COVERED UNDER THE CONFLICT OF INTEREST POLICY. LEGAL COUNSEL MEETS PERIODICALLY TO REVIEW THE POLICY AND ANY POTENTIAL CONFLICTS, AS NEEDED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ALL REQUIRED DISCLOSURES AVAILABLE TO THE PUBLIC UNDER IRS REGULATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15a and 15b:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MARY JULIA KOCH FOUNDATION DID NOT HAVE ANY COMPENSATED DIRECTORS, OFFICERS, OR KEY EMPLOYEES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>