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    <ReturnTs>2024-05-09T03:42:29Z</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>260130124</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>JOSEPHINE MARIE HERZON MEMORIAL FOUNDATION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>JOSE</BusinessNameControlTxt>
      <PhoneNum>3149628625</PhoneNum>
      <USAddress>
        <AddressLine1Txt>410 W SWON AVE</AddressLine1Txt>
        <CityNm>WEBSTER GRVS</CityNm>
        <StateAbbreviationCd>MO</StateAbbreviationCd>
        <ZIPCd>631193637</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Benjamin T Herzon</PersonNm>
      <PersonTitleTxt>Chairman and Treasurer</PersonTitleTxt>
      <PhoneNum>3149628625</PhoneNum>
      <SignatureDt>2024-05-09</SignatureDt>
    </BusinessOfficerGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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      <WebsiteAddressTxt>http://josiefoundation.org</WebsiteAddressTxt>
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      <InvestmentIncomeAmt>749</InvestmentIncomeAmt>
      <TotalRevenueAmt>6013</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>3540</GrantsAndSimilarAmountsPaidAmt>
      <OtherExpensesTotalAmt>19</OtherExpensesTotalAmt>
      <TotalExpensesAmt>3559</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>2454</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>20665</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>1290</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>24409</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
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        <EOYAmt>24409</EOYAmt>
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        <EOYAmt>0</EOYAmt>
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        <BOYAmt>20665</BOYAmt>
        <EOYAmt>24409</EOYAmt>
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      <PrimaryExemptPurposeTxt>Cancer research and support for critically ill children</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>We collected toys from the public and distributed them to the pediatric cancer wards of local children's hospitals. The amount shown here and in line 10 is our estimate of the fair market value of these toys.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>3540</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>3540</ProgramServiceExpensesAmt>
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      <TotalProgramServiceExpensesAmt>3540</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Benjamin T Herzon</PersonNm>
        <TitleTxt>Chairman/Treasurer</TitleTxt>
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      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Marta R Gray</PersonNm>
        <TitleTxt>President/Secretary</TitleTxt>
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        <CompensationAmt>0</CompensationAmt>
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      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Julie M Herzon</PersonNm>
        <TitleTxt>Director</TitleTxt>
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        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Aaron D Herzon</PersonNm>
        <TitleTxt>Director</TitleTxt>
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        <CompensationAmt>0</CompensationAmt>
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      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
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      <SubjectToProxyTaxInd referenceDocumentName="IRS990ScheduleC">false</SubjectToProxyTaxInd>
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      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
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      <TaxImposedUnderIRC4912Amt>0</TaxImposedUnderIRC4912Amt>
      <TaxImposedUnderIRC4955Amt>0</TaxImposedUnderIRC4955Amt>
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      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
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        <PersonNm>Benjamin T Herzon</PersonNm>
        <USAddress>
          <AddressLine1Txt>410 W Swon Ave</AddressLine1Txt>
          <CityNm>Webster Groves</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63119</ZIPCd>
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        <PhoneNum>3149628625</PhoneNum>
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      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
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      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentName="IRS990ScheduleC">false</PoliticalCampaignActyInd>
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      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
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      <OtherEmployeePaidOver100kCnt>0</OtherEmployeePaidOver100kCnt>
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        <CurrentTaxYearMinus3YearsAmt>2561</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3020</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3476</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearMinus2YearsAmt>3020</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3476</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearMinus1YearAmt>826</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>749</CurrentTaxYearAmt>
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    <IRS990ScheduleO documentId="ScheduleO" documentName="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 10</FormAndLineReferenceDesc>
        <ExplanationTxt>$900 of toys to St. Louis Children's Hospital and $2,640 of toys to Cardinal Glennon Children's Medical Center.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Transactions fees for using PayPal to raise funds.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 20</FormAndLineReferenceDesc>
        <ExplanationTxt>Unrealized capital gain.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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