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        </DividendsAndInterestFromSecDtl>
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        <SubtotalsIncmProducingActyGrp>
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        <TrnsfrOtherAssetNonchrtblEOInd>false</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>false</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>false</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>false</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>false</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>false</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>false</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>false</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>false</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <IRS990ScheduleB documentId="IRS990ScheduleB-01">
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      <GeneralRuleInd>X</GeneralRuleInd>
      <ContributorInformationGrp>
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        <ContributorUSAddress>
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          <CityNm>Dallas</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
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        </ContributorUSAddress>
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        <PersonContributionInd>X</PersonContributionInd>
      </ContributorInformationGrp>
      <ContributorInformationGrp>
        <ContributorNum>2</ContributorNum>
        <ContributorPersonNm>David B Miller</ContributorPersonNm>
        <ContributorUSAddress>
          <AddressLine1Txt>4143 Maple Avenue Suite 500</AddressLine1Txt>
          <CityNm>Dallas</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>75219</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>10955356</TotalContributionsAmt>
        <NoncashContributionInd>X</NoncashContributionInd>
      </ContributorInformationGrp>
      <NonCashPropertyContributionGrp>
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        <FairMarketValueAmt>1729073</FairMarketValueAmt>
        <ReceivedDt>2023-12-15</ReceivedDt>
      </NonCashPropertyContributionGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>1</ContributorNum>
        <NoncashPropertyDesc>55174.79 sh Cohen &amp; Steers Inst Realty</NoncashPropertyDesc>
        <FairMarketValueAmt>2539695</FairMarketValueAmt>
        <ReceivedDt>2023-12-15</ReceivedDt>
      </NonCashPropertyContributionGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>1</ContributorNum>
        <NoncashPropertyDesc>15626 sh Ishares S&amp;P 500 Small Cap 600 ETF</NoncashPropertyDesc>
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        <ReceivedDt>2023-12-15</ReceivedDt>
      </NonCashPropertyContributionGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>1</ContributorNum>
        <NoncashPropertyDesc>128191.77 sh WCM SMID Quality Value Fud</NoncashPropertyDesc>
        <FairMarketValueAmt>1547275</FairMarketValueAmt>
        <ReceivedDt>2023-12-15</ReceivedDt>
      </NonCashPropertyContributionGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>1</ContributorNum>
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        <EOYFMVAmt>1610572</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
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        <EOYFMVAmt>1798673</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
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      <InvestmentsCorporateStockGrp>
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      <InvestmentsCorporateStockGrp>
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        <EOYFMVAmt>1567785</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
    </InvestmentsCorpStockSchedule>
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        <Desc>Excess value over cost of share grant to foundation</Desc>
        <Amt>2638197</Amt>
      </OtherDecreasesDetail>
    </OtherDecreasesSchedule>
    <OtherExpensesSchedule documentId="OtherExpensesSchedule-01">
      <OtherExpensesScheduleGrp>
        <Desc>Bank Fees</Desc>
        <RevenueAndExpensesPerBooksAmt>15</RevenueAndExpensesPerBooksAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncomeSchedule2 documentId="OtherIncomeSchedule2-01">
      <OtherIncomeDetail>
        <Desc>Federal Excise Tax</Desc>
        <RevenueAndExpensesPerBooksAmt>24819</RevenueAndExpensesPerBooksAmt>
      </OtherIncomeDetail>
    </OtherIncomeSchedule2>
  </ReturnData>
</Return>
