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        <Desc>PAYABLE TO MPM ENDOWMENT FUND</Desc>
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          <AddressLine1Txt>800 W WELLS ST</AddressLine1Txt>
          <CityNm>MILWAUKEE</CityNm>
          <StateAbbreviationCd>WI</StateAbbreviationCd>
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        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>HISTORIC HAYMARKET MILWAUKEE ("HHM") EXISTS TO INVEST IN, RECEIVE, HOLD, USE, AND DISPOSE OF ALL PROPERTY, REAL OR PERSONAL, AS MAY BE NECESSARY OR DESIREABLE FOR THE PURPOSE OF DEVELOPING AND CONSTRUCTING A PERMANENT MUSEUM BUILDING.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>IN 2022, HHM MADE SIGNIFICANT TOWARDS THE DEVELOPMENT OF A NEW FACILITY FOR WISCONSIN'S NATURAL HISTORY MUSEUM. ON THE SITE DEVELOPMENT FRONT, HHM COMPLETED DEMOLITION OF ONE OF THE THREE BUILDINGS ON THE SITE AND HAD THE ALLEY VACATED TO MAKE WAY FOR CONSOLIDATION OF THE PROPERTIES. HHM ALSO OVERSAW THE COMPLETION OF CONCEPT DESIGN OF BOTH THE BUILDING AND EXHIBITS, ANNOUNCING THE BUILDING DESIGN TO THE PUBLIC IN THE SUMMER. IN TERMS OF FUNDING, THE ORGANIZATION SECURED A COMMITMENT OF 45M FROM MILWAUKEE COUNTY AND OFFICIALLY LAUNCHED THE PROJECT'S CAPITAL CAMPAIGN, WISCONSIN WONDERS. THE PROGRESS HHM MADE IN 2022 HELPED ENSURE THE MILWAUKEE PUBLIC MUSUEM ACHIEVED REACCREDITATION, WHICH WAS AT RISK IF THE FUTURE MUSEUM PROJECT DID NOT MEET SIGNIFICANT MILESTONES. HHM ALSO CONTINUED SIGNIFICANT COMMUNITY ENGAGEMENT, INCLUDING FOCUS GROUPS, WORKSHOPS, INTERVIEWS AND AN EXHIBIT CONTENT SURVEY THAT WAS COMPLETED BY NEARLY 5,000 MEMBERS OF THE COMMUNITY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 WILL BE REVIEWED AND APPROVED BY THE BOARD PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICERS AND DIRECTORS ARE REQUIRED TO DISCLOSE CONFLICTS OF INTEREST ANNUALLY. COMPLIANCE WITH THE CONFLICT OF INTEREST POLICY IS MONITORED AND ENFORCED BY PERIODIC REVIEWS BY THE BOARD.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AVAILABLE UPON REQUEST.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>PRE-CONSTRUCTION &amp; SITE PREP 2,383,035 33,133 0 EXHIBIT DESIGN 1,509,655 0 0 PROJECT DEVELOPMENT 297,678 0 0 TOTAL 4,190,368 33,133 0</ExplanationTxt>
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</Return>
