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      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>1485000</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2211000</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1765000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>707034</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>194000</CurrentTaxYearAmt>
        <TotalAmt>6362034</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>1485000</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2211000</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1765000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>707034</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>194000</CurrentTaxYearAmt>
        <TotalAmt>6362034</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>4762654</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>1599380</PublicSupportTotal170Amt>
      <TotalSupportAmt>6362034</TotalSupportAmt>
      <PublicSupportCY170Pct>0.25140</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.21490</PublicSupportPY170Pct>
      <TenPctFactsCrcmstncsTestCYInd>X</TenPctFactsCrcmstncsTestCYInd>
      <FactsAndCircumstancesTestTxt>OCF IS A PUBLIC CHARITY BECAUSE IT SATISFIES THE TEN PERCENT AND FACTS AND CIRCUMSTANCES TEST DESCRIBED IN SECTION 1.170A-9(E)(3) OF THE TREASURY REGULATIONS. THE PERCENTAGE OF SUPPORT RECEIVED BY OCF FROM THE PUBLIC (25.14%) IS SUBSTANTIAL AND WELL IN EXCESS OF THE 10% MINIMUM. AS REFLECTED IN THIS RETURN, AND WITH THE EXCEPTION OF ONE SIGNIFICANT DONOR, OCF'S SUPPORT IS FROM A DIVERSE GROUP OF SUPPORTERS AND THE GENERAL PUBLIC. MOST DONATIONS TO OCF ARE RESTRICTED FOR PARTICULAR PURPOSES AND IN THAT WAY OCF IS ACCOUNTABLE TO THOSE DONORS THROUGH THE FULFILLMENT OF THOSE RESTRICTIONS.OCF ALSO RAISES SIGNIFICANT FUNDS FOR OTHER CHARITABLE ORGANIZATIONS AND PROGRAMS. IN THE MAJORITY OF CASES, FUNDS ARE SENT DIRECTLY FROM DONORS TO THIRD PARTY GRANTEES INSTEAD OF BEING DONATED TO OCF.OCF'S GOVERNING BODY REPRESENTS THE BROAD INTERESTS OF THE PUBLIC AND NOT THE PERSONAL INTERESTS OF A LIMITED NUMBER OF DONORS. THE GOVERNING BODY IS NOT MADE UP OF INDIVIDUALS FROM ONE SINGLE FAMILY; RATHER, THE BOARD IS COMPRISED OF A BROAD MIX OF UNRELATED MEMBERS IN THE CHICAGO METROPOLITAN AREA. THESE DIRECTORS REPRESENT A BROAD CROSS SECTION OF CHICAGO COMMUNITIES, EXPERIENCES, AND INTERESTS. THE ORGANIZATION PROVIDES GRANTS TO OTHER NFP AND CIVIC ORGANIZATIONS TO SUPPORT THE IMPROVEMENT OF DAILY EXPERIENCES OF CHICAGO RESIDENTS THROUGH COORDINATED PHILANTHROPY - PRIMARILY FOR AFFORDABLE HOUSING, PUBLIC SAFETY, OPEN SPACE, EDUCATION, ARTS AND CULTURE AND IMMIGRATION. MEMBERS OF THE PUBLIC WITH SPECIAL KNOWLEDGE OR EXPERTISE PARTICIPATE IN THE PROGRAMS OF OCF.IN THIS MANNER, OCF MEETS THE FACTS AND CIRCUMSTANCES TEST FOR 2023.</FactsAndCircumstancesTestTxt>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CHICAGO ARCHITECTURAL BIENNIAL</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>78 E WASHINGTON ST</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60602</ZIPCd>
        </USAddress>
        <RecipientEIN>471305503</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>80000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>ORGANIZATIONAL SUPPORT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>B U I L D INCORPORATED</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>5100 W HARRISON ST</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60644</ZIPCd>
        </USAddress>
        <RecipientEIN>237022085</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>94428</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>ORGANIZATIONAL SUPPORT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>ELLA FLAGG YOUNG ELEMENTARY SCHOOL</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1434 N PARKSIDE AVE</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60651</ZIPCd>
        </USAddress>
        <CashGrantAmt>9600</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>ORGANIZATIONAL SUPPORT</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>2</Total501c3OrgCnt>
      <TotalOtherOrgCnt>3</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FUND MAKES GRANTS TO ORGANIZATIONS THAT ARE DESCRIBED IN CODE SECTION 501(C)(3). IT ALSO MAKES GRANTS TO GOVERNMENTAL ENTITIES FOR PUBLIC PURPOSES. FOR GRANTS TO CHICAGO ARCHITECTURE BIENNIAL AND CITY OF CHICAGO, THE FUND REQUIRES REPORTS AND MEETS WITH THE GRANTEES REGULARLY. FOR SMALLER GRANTS, THE FUND CONFIRMS WITH THE GRANTEES THAT THE FUNDS WERE USED SOLELY FOR THE APPROVED PURPOSES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART 1 LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION IS ORGANIZED AND WILL BE OPERATED EXCLUSIVELY FOR CHARITABLE, LITERARY, SCIENTIFIC, AND EDUCATIONAL PURPOSES WITHIN THE MEANING OF CODE SECTION 501(C)(3), INCLUDING FOR SUCH PURPOSES, BUT NOT LIMITED TO, THE PROMOTION OF HEALTH, THE PROMOTION OF SOCIAL WELFARE, THE ADVANCEMENT OF EDUCATION AND SCIENCE, THE RELIEF OF CERTAIN BURDENS THAT WOULD OTHERWISE FALL TO THE CITY OF CHICAGO AND ITS SISTER AGENCIES, AND THE RELIEF OF THE POOR AND DISTRESSED, EACH WITHIN THE CITY OF CHICAGO. MORE SPECIFICALLY, THE ORGANIZATION WILL CONCENTRATE ON (1) AFFORDABLE HOUSING, (2) PUBLIC SAFETY, (3) URBAN CONSERVATION AND OPEN SPACE, (4) EDUCATION, ARTS, AND CULTURE, AND (5) SUPPORTING AND AMPLIFYING THE POSITIVE WORK OF NEIGHBORS AND NEIGHBORHOODS. THE ORGANIZATION WILL ACHIEVE ITS PURPOSES BY (A) SUPPORTING INITIATIVES OF THE CITY OF CHICAGO AND ITS SISTER AGENCIES, AS WELL AS PUBLIC-PRIVATE COLLABORATIONS IN THE CITY OF CHICAGO, THAT FURTHER SUCH PURPOSES AND CONCENTRATIONS; (B) INCREASING COMMUNITY, FOUNDATION, AND CIVIC INVOLVEMENT WITH AND SUPPORT FOR SUCH INITIATIVES; (C) PROVIDING MECHANISMS THROUGH WHICH PUBLIC, PRIVATE, AND NOT-FOR-PROFIT SECTOR RESOURCES CAN BE UTILIZED FOR SUCH INITIATIVES; (D) DIRECTING RESOURCES TOWARDS AREAS OF IDENTIFIED NEED WITHIN THE MEANING OF CODE SECTION 501(C)(3); AND (E) SUCH OTHER MEANS AS ARE APPROPRIATE AND CONSISTENT WITH THE PURPOSE OF THE ORGANIZATION, AND INCLUDING ALL ACTIVITIES INCIDENTAL OR RELATED THERETO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION IS ORGANIZED AND WILL BE OPERATED EXCLUSIVELY FOR CHARITABLE, LITERARY, SCIENTIFIC, AND EDUCATIONAL PURPOSES WITHIN THE MEANING OF CODE SECTION 501(C)(3), INCLUDING FOR SUCH PURPOSES, BUT NOT LIMITED TO, THE PROMOTION OF HEALTH, THE PROMOTION OF SOCIAL WELFARE, THE ADVANCEMENT OF EDUCATION AND SCIENCE, THE RELIEF OF CERTAIN BURDENS THAT WOULD OTHERWISE FALL TO THE CITY OF CHICAGO AND ITS SISTER AGENCIES, AND THE RELIEF OF THE POOR AND DISTRESSED, EACH WITHIN THE CITY OF CHICAGO. MORE SPECIFICALLY, THE ORGANIZATION WILL CONCENTRATE ON (1) AFFORDABLE HOUSING, (2) PUBLIC SAFETY, (3) URBAN CONSERVATION AND OPEN SPACE, (4) EDUCATION, ARTS, AND CULTURE, AND (5) SUPPORTING AND AMPLIFYING THE POSITIVE WORK OF NEIGHBORS AND NEIGHBORHOODS. THE ORGANIZATION WILL ACHIEVE ITS PURPOSES BY (A) SUPPORTING INITIATIVES OF THE CITY OF CHICAGO AND ITS SISTER AGENCIES, AS WELL AS PUBLIC-PRIVATE COLLABORATIONS IN THE CITY OF CHICAGO, THAT FURTHER SUCH PURPOSES AND CONCENTRATIONS; (B) INCREASING COMMUNITY, FOUNDATION, AND CIVIC INVOLVEMENT WITH AND SUPPORT FOR SUCH INITIATIVES; (C) PROVIDING MECHANISMS THROUGH WHICH PUBLIC, PRIVATE, AND NOT-FOR-PROFIT SECTOR RESOURCES CAN BE UTILIZED FOR SUCH INITIATIVES; (D) DIRECTING RESOURCES TOWARDS AREAS OF IDENTIFIED NEED WITHIN THE MEANING OF CODE SECTION 501(C)(3); AND (E) SUCH OTHER MEANS AS ARE APPROPRIATE AND CONSISTENT WITH THE PURPOSE OF THE ORGANIZATION, AND INCLUDING ALL ACTIVITIES INCIDENTAL OR RELATED THERETO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS PROVIDED TO THE BOARD OF DIRECTORS PRIOR TO THE SUBMISSION TO THE IRS. THE FUND'S PRESIDENT WORKS WITH THE FUND'S LEGAL COUNSEL AND AUDITORS TO BE SURE THE RETURN IS COMPLETE AND ACCURATE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS FOR DETERMINING WHETHER A CONFLICT OF INTEREST EXISTS REQUIRES THAT CONFLICTS OF INTEREST ARE DISCLOSED PRIOR TO ANY MEETING OF THE BOARD OF DIRECTORS. ANY CONFLICT IS REQUIRED TO BE DISCLOSED IN THE MINUTES OF THE BOARD OF DIRECTORS MEETING. VIOLATION OF THE CONFLICT OF INTEREST POLICY CAN LEAD TO REMOVAL FROM THE BOARD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION GATHERED COMPARABILITY DATA FOR PRESIDENT'S COMPENSATION. THIS WAS REVIEWED BY THE BOARD AND THE BOARD APPROVED THE COMPENSATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE AVAILABLE UPON WRITTEN REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>