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    <ReturnTs>2017-08-15T12:32:12-07:00</ReturnTs>
    <TaxPeriodEndDt>2017-03-31</TaxPeriodEndDt>
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        <BusinessNameLine1Txt>MARK BLAQUIERE CPA</BusinessNameLine1Txt>
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        <AddressLine1Txt>5950 Berkshire Lane Ste 1500</AddressLine1Txt>
        <CityNm>DALLAS</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>752255846</ZIPCd>
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    <ReturnTypeCd>990PF</ReturnTypeCd>
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    <Filer>
      <EIN>510169327</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Cary M Maguire Foundation</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>CARY</BusinessNameControlTxt>
      <PhoneNum>2146588000</PhoneNum>
      <USAddress>
        <AddressLine1Txt>5950 Berkshire Lane</AddressLine1Txt>
        <CityNm>Dallas</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>75225</ZIPCd>
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    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Cary M Maguire</PersonNm>
      <PersonTitleTxt>President</PersonTitleTxt>
      <SignatureDt>2017-08-15</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
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    <PreparerPersonGrp>
      <PreparerPersonNm>Mark Blaquiere</PreparerPersonNm>
      <PTIN>P01470651</PTIN>
      <PhoneNum>2146588027</PhoneNum>
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    <TaxYr>2016</TaxYr>
    <BuildTS>2021-01-29 14:40:06Z</BuildTS>
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        <TotalAssetsEOYAmt>2351965</TotalAssetsEOYAmt>
        <TotalAssetsEOYFMVAmt>0</TotalAssetsEOYFMVAmt>
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        <AccountsPayableEOYAmt>10540</AccountsPayableEOYAmt>
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        <OtherLiabilitiesEOYAmt referenceDocumentId="OtherLiabilitiesSchedule">613751</OtherLiabilitiesEOYAmt>
        <TotalLiabilitiesBOYAmt>1561636</TotalLiabilitiesBOYAmt>
        <TotalLiabilitiesEOYAmt>624291</TotalLiabilitiesEOYAmt>
        <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
        <UnrestrictedBOYAmt>1993128</UnrestrictedBOYAmt>
        <UnrestrictedEOYAmt>1727674</UnrestrictedEOYAmt>
        <TotNetAstOrFundBalancesBOYAmt>1993128</TotNetAstOrFundBalancesBOYAmt>
        <TotNetAstOrFundBalancesEOYAmt>1727674</TotNetAstOrFundBalancesEOYAmt>
        <TotalLiabilitiesNetAstBOYAmt>3554764</TotalLiabilitiesNetAstBOYAmt>
        <TotalLiabilitiesNetAstEOYAmt>2351965</TotalLiabilitiesNetAstEOYAmt>
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      <ChgInNetAssetsFundBalancesGrp>
        <TotNetAstOrFundBalancesBOYAmt>1993128</TotNetAstOrFundBalancesBOYAmt>
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        <OtherIncreasesAmt referenceDocumentId="OtherIncreasesSchedule">734912</OtherIncreasesAmt>
        <SubtotalAmt>1727674</SubtotalAmt>
        <TotNetAstOrFundBalancesEOYAmt>1727674</TotNetAstOrFundBalancesEOYAmt>
      </ChgInNetAssetsFundBalancesGrp>
      <CapGainsLossTxInvstIncmDetail>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>15000 shares Citigroup Common Stock</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <AcquiredDt>2014-04-01</AcquiredDt>
          <SoldDt>2016-06-22</SoldDt>
          <GrossSalesPriceAmt>648047</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>720554</CostOrOtherBasisAmt>
          <GainOrLossAmt>-72507</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>-72507</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>10000 shares Intel Corp Common Stock</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <AcquiredDt>2005-07-21</AcquiredDt>
          <SoldDt>2016-06-22</SoldDt>
          <GrossSalesPriceAmt>324515</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>271503</CostOrOtherBasisAmt>
          <GainOrLossAmt>53012</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>53012</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>8400 shares Intel Corp Common Stock</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <AcquiredDt>2005-07-21</AcquiredDt>
          <SoldDt>2016-06-22</SoldDt>
          <GrossSalesPriceAmt>272592</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>228062</CostOrOtherBasisAmt>
          <GainOrLossAmt>44530</GainOrLossAmt>
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        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>3200 shares Microsoft Corp Common Stock</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <AcquiredDt>2000-09-15</AcquiredDt>
          <SoldDt>2016-06-22</SoldDt>
          <GrossSalesPriceAmt>163837</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>102660</CostOrOtherBasisAmt>
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        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>20000 shares Bank of America Common Stock</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
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        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>25000 shares Advanced Micro Common Stock</PropertyDesc>
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        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>5000 shares American Airlines Common Stock</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
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        <CapitalGainNetIncomeAmt>439636</CapitalGainNetIncomeAmt>
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      <QlfyUndSect4940eReducedTaxGrp>
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        <NetVlNoncharitableAssetsYr2Amt>2087738</NetVlNoncharitableAssetsYr2Amt>
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        <DomesticOrgMeetingSect4940eInd>X</DomesticOrgMeetingSect4940eInd>
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        <MoreThan100SpentInd>false</MoreThan100SpentInd>
        <Form1120POLFiledInd>false</Form1120POLFiledInd>
        <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
        <ChangesToArticlesOrBylawsInd>false</ChangesToArticlesOrBylawsInd>
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        <Form990TFiledInd>false</Form990TFiledInd>
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        <Section508eRqrSatisfiedInd>true</Section508eRqrSatisfiedInd>
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        <ComplyWithPublicInspRqrInd>true</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
        <PersonsWithBooksName>
          <BusinessNameLine1Txt>Cary Maguire</BusinessNameLine1Txt>
        </PersonsWithBooksName>
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        <LocationOfBooksUSAddress>
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          <CityNm>Dallas</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>752255843</ZIPCd>
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        <ForeignAccountsQuestionInd>false</ForeignAccountsQuestionInd>
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        <PayCompDisqualifiedPrsnInd>false</PayCompDisqualifiedPrsnInd>
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        <PaymentToGovernmentOfficialInd>false</PaymentToGovernmentOfficialInd>
        <ActsFailToQlfyAsExceptionsInd>false</ActsFailToQlfyAsExceptionsInd>
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        <InfluenceLegislationInd>false</InfluenceLegislationInd>
        <InfluenceElectionInd>false</InfluenceElectionInd>
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          <USAddress>
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            <CityNm>Dallas</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75220</ZIPCd>
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          <PersonNm>Cary M Maguire JR</PersonNm>
          <USAddress>
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            <StateAbbreviationCd>NJ</StateAbbreviationCd>
            <ZIPCd>085343708</ZIPCd>
          </USAddress>
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          <PersonNm>Melinda Down</PersonNm>
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        <CompOfHghstPdEmplOrNONETxt>NONE</CompOfHghstPdEmplOrNONETxt>
        <CompOfHghstPdCntrctOrNONETxt>NONE</CompOfHghstPdCntrctOrNONETxt>
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      <MinimumInvestmentReturnGrp>
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        <AverageMonthlyCashBalancesAmt>0</AverageMonthlyCashBalancesAmt>
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        <UndistributedIncomeCYAmt>0</UndistributedIncomeCYAmt>
        <ExcessDistriCyovToNextYrAmt>1274606</ExcessDistriCyovToNextYrAmt>
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      <SupplementaryInformationGrp>
        <ContributingManagerNm>Cary M Maguire</ContributingManagerNm>
        <OnlyContriToPreselectedInd>X</OnlyContriToPreselectedInd>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>CMM Cntr for EthicsThe American College</BusinessNameLine1Txt>
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          <RecipientUSAddress>
            <AddressLine1Txt>270 South Bryn Mawr Avenue</AddressLine1Txt>
            <CityNm>Bryn Mawr</CityNm>
            <StateAbbreviationCd>PA</StateAbbreviationCd>
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