﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2023v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-09-17T16:09:06-04:00</ReturnTs>
    <TaxPeriodEndDt>2024-06-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>382706146</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>YEO &amp; YEO PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>4468 OAK BRIDGE DR</AddressLine1Txt>
        <CityNm>FLINT</CityNm>
        <StateAbbreviationCd>MI</StateAbbreviationCd>
        <ZIPCd>485325422</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>382236676</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>FRIENDS OF THE SLOAN MUSEUM AND THE</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>LONGWAY PLANETARIUM</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>FRIE</BusinessNameControlTxt>
      <PhoneNum>8102373450</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1221 EAST KEARSLEY STREET</AddressLine1Txt>
        <CityNm>FLINT</CityNm>
        <StateAbbreviationCd>MI</StateAbbreviationCd>
        <ZIPCd>48503</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>TODD SLISHER</PersonNm>
      <PersonTitleTxt>DIRECTOR</PersonTitleTxt>
      <PhoneNum>8102373450</PhoneNum>
      <SignatureDt>2024-09-17</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>JENNIFER WATKINS</PreparerPersonNm>
      <PTIN>P01302003</PTIN>
      <PhoneNum>8107323000</PhoneNum>
      <PreparationDt>2024-09-17</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-08-08 14:25:15Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc2">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WWW.SLOANLONGWAY.COM</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc3">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>85865</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>85625</ContributionsGiftsGrantsEtcAmt>
      <InvestmentIncomeAmt>240</InvestmentIncomeAmt>
      <TotalRevenueAmt>85865</TotalRevenueAmt>
      <SalariesOtherCompEmplBnftAmt>2400</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>13776</FeesAndOtherPymtToIndCntrctAmt>
      <PrintingPublicationsPostageAmt>12858</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>27532</OtherExpensesTotalAmt>
      <TotalExpensesAmt>56566</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>29299</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>131793</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>161092</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>131793</BOYAmt>
        <EOYAmt>161092</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>131793</BOYAmt>
        <EOYAmt>161092</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>131793</BOYAmt>
        <EOYAmt>161092</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>TO MAINTAIN AN ASSOCIATION OF PHILANTHROPIC INDIVIDUALS TO RAISE, RECEIVE AND ADMINISTER GIFTS, ENDOWMENTS AND BEQUESTS FOR AND TO SUPPORT THE GOALS AND OBJECTIVES OF THE SLOAN MUSEUM AND THE LONGWAY PLANETARIUM.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>SUPPORT OF THE ALFRED P. SLOAN MUSEUM AND THE ROBERT T. LONGWAY PLANETARIUM INCLUDING EXHIBITS AND AUTO RESTORATION.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>56566</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>56566</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JEFFREY FEURT</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MATT ASSENMACHER</PersonNm>
        <TitleTxt>TREASURER/SE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ELGIE BRIGHT</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DEBBY HARRIS</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>THOM SELF</PersonNm>
        <TitleTxt>VICE PRESIDE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JASON WATSON</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>TODD SLISHER</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>MI</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>TODD SLISHER</PersonNm>
        <USAddress>
          <AddressLine1Txt>1221 E KEARSLEY STREET</AddressLine1Txt>
          <CityNm>FLINT</CityNm>
          <StateAbbreviationCd>MI</StateAbbreviationCd>
          <ZIPCd>48503</ZIPCd>
        </USAddress>
        <PhoneNum>8102373450</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc3">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>33157</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>142920</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>69863</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>77491</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>85625</CurrentTaxYearAmt>
        <TotalAmt>409056</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>33157</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>142920</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>69863</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>77491</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>85625</CurrentTaxYearAmt>
        <TotalAmt>409056</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>91806</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>317250</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus3YearsAmt>107</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>184</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>123</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>240</CurrentTaxYearAmt>
        <TotalAmt>654</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>409710</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>123</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.77430</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.75510</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES MISCELLANEOUS 27,532 TOTAL 27,532</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>TO MAINTAIN AN ASSOCIATION OF PHILANTHROPIC INDIVIDUALS TO RAISE, RECEIVE AND ADMINISTER GIFTS, ENDOWMENTS AND BEQUESTS FOR AND TO SUPPORT THE GOALS AND OBJECTIVES OF THE SLOAN MUSEUM AND THE LONGWAY PLANETARIUM.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>