<?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>2024-04-10T21:23:10-04:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>133637923</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>CPA SERVICES UNLIMITED PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>2102 JACOBS HILL ROAD</AddressLine1Txt>
        <CityNm>CORTLANDT MANOR</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>105672530</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>132885457</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>PEEKSKILL MUSEUM</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>PEEK</BusinessNameControlTxt>
      <PhoneNum>9147360473</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 84</AddressLine1Txt>
        <CityNm>PEEKSKILL</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>10566</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>GEORGE OROS</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>9147360473</PhoneNum>
      <SignatureDt>2024-04-08</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>GEORGE</PersonFirstNm>
        <PersonLastNm>OROS</PersonLastNm>
      </PersonFullName>
      <SSN>XXX-XX-XXXX</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>false</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>MICHAEL J MARX CPA</PreparerPersonNm>
      <PTIN>P01431061</PTIN>
      <PhoneNum>9143800405</PhoneNum>
      <PreparationDt>2024-04-10</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc2 RetDoc3">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>PEEKSKILLMUSEUM.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc4">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>22802</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>14312</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>7830</ProgramServiceRevenueAmt>
      <InvestmentIncomeAmt>660</InvestmentIncomeAmt>
      <TotalRevenueAmt>22802</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>347</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>27926</OccupancyRentUtltsAndMaintAmt>
      <PrintingPublicationsPostageAmt>1064</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>10555</OtherExpensesTotalAmt>
      <TotalExpensesAmt>39892</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-17090</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>465929</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>448839</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>62767</BOYAmt>
        <EOYAmt>63707</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <LandAndBuildingsGrp>
        <BOYAmt>403162</BOYAmt>
        <EOYAmt>385132</EOYAmt>
      </LandAndBuildingsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>465929</BOYAmt>
        <EOYAmt>448839</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>465929</BOYAmt>
        <EOYAmt>448839</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>THE MUSEUM PROVIDES HOUSING FOR ARTIFACTS OF THE PEEKSKILL, NY AREA WHICH IS OPEN TO THE PUBLIC YEAR-ROUND. THE MUSEUM SHOWCASES THE MANY FACETS OF THE REGION'S HISTORY.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>WE PROVIDE A MUSEUM HOUSING ARTIFACTS OF THE PEEKSKILL, NY AREA WHICH IS OPEN TO THE PUBLIC YEAR-ROUND. THE MUSEUM SHOWCASES THE MANY FACETS OF THE REGION'S HISTORY. THE MUSEUM PROVIDES PUBLIC EDUCATION OF THE PEEKSKILL AREA THROUGH DISPLAYS, TOURS AND PRESENTATIONS.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>19470</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>WE PROVIDE A MUSEUM HOUSING ARTIFACTS OF THE PEEKSKILL, NY AREA WHICH IS OPEN TO THE PUBLIC YEAR-ROUND. THE MUSEUM SHOWCASES THE MANY FACETS OF THE REGION'S HISTORY. THE MUSEUM PROVIDES PUBLIC EDUCATION OF THE PEEKSKILL AREA THROUGH DISPLAYS, TOURS AND PRESENTATIONS.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>20422</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>39892</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>GEORGE OROS</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JOHN CURRAN</PersonNm>
        <TitleTxt>VICE PRESIDE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KATHLEEN HERRMANN</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DANIEL GROSSMAN</PersonNm>
        <TitleTxt>RECORDING SE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DIANE WEBSTER</PersonNm>
        <TitleTxt>CORRESPONDIN</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LORMAN AUGUSTOWSKI</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JOHN BEERS</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANITA CREEM</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MIKE STEWART</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MICHAEL MARX</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</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>
      <BooksInCareOfDetail>
        <PersonNm>KATHLEEN HERRMANN</PersonNm>
        <USAddress>
          <AddressLine1Txt>30 TANGLEWYLDE RD</AddressLine1Txt>
          <CityNm>LAKE PEEKSKILL</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10537</ZIPCd>
        </USAddress>
        <PhoneNum>9147360473</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="RetDoc4">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>4196</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>17560</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>54952</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10706</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>14312</CurrentTaxYearAmt>
        <TotalAmt>101726</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>19614</CurrentTaxYearMinus4YearsAmt>
        <TotalAmt>19614</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <GrossReceiptsNonUnrltBusGrp>
        <CurrentTaxYearMinus3YearsAmt>6238</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>21787</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3920</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>7830</CurrentTaxYearAmt>
        <TotalAmt>39775</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>23810</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>23798</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>76739</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>14626</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>22142</CurrentTaxYearAmt>
        <TotalAmt>161115</TotalAmt>
      </Total509Grp>
      <PublicSupportTotal509Amt>161115</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus2YearsAmt>1</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>660</CurrentTaxYearAmt>
        <TotalAmt>662</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus2YearsAmt>1</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>660</CurrentTaxYearAmt>
        <TotalAmt>662</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <NetIncomeFromOtherUBIGrp>
        <CurrentTaxYearMinus1YearAmt>17945</CurrentTaxYearMinus1YearAmt>
        <TotalAmt>17945</TotalAmt>
      </NetIncomeFromOtherUBIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>23810</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>23798</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>76740</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>32572</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>22802</CurrentTaxYearAmt>
        <TotalAmt>179722</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.89650</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.89480</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>VERPLANCK ART HISTORY SHOW COST OF GOODS SOLD 2,392 EXPENSES BANK FEES, DUES &amp; OTHER 91 OFFICE SUPPLIES &amp; OTHER 1,276 TELEPHONE/CABLE 2,248 WATER 180 WEBSITE/ SOCIAL MEDIA 358 D &amp; O INSURANCE 595 LIABILITY &amp; BLDG INSURANCE 2,729 OTHER FEES 286 MISCELLANEOUS 400 TOTAL 10,555</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MUSEUM PROVIDES HOUSING FOR ARTIFACTS OF THE PEEKSKILL, NY AREA WHICH IS OPEN TO THE PUBLIC YEAR-ROUND. THE MUSEUM SHOWCASES THE MANY FACETS OF THE REGION'S HISTORY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 28</FormAndLineReferenceDesc>
        <ExplanationTxt>WE PROVIDE A MUSEUM HOUSING ARTIFACTS OF THE PEEKSKILL, NY AREA WHICH IS OPEN TO THE PUBLIC YEAR-ROUND. THE MUSEUM SHOWCASES THE MANY FACETS OF THE REGION'S HISTORY. THE MUSEUM PROVIDES PUBLIC EDUCATION OF THE PEEKSKILL AREA THROUGH DISPLAYS, TOURS AND PRESENTATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 31</FormAndLineReferenceDesc>
        <ExplanationTxt>WE PROVIDE A MUSEUM HOUSING ARTIFACTS OF THE PEEKSKILL, NY AREA WHICH IS OPEN TO THE PUBLIC YEAR-ROUND. THE MUSEUM SHOWCASES THE MANY FACETS OF THE REGION'S HISTORY. THE MUSEUM PROVIDES PUBLIC EDUCATION OF THE PEEKSKILL AREA THROUGH DISPLAYS, TOURS AND PRESENTATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <TransferPrsnlBnftContractsDecl documentId="RetDoc3">
      <DeclarationDesc>THE MUSEUM DID NOT RECEIVE ANY FUNDS, DIRECTLY OR INDIRECTLY DURING THE YEAR, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT.</DeclarationDesc>
    </TransferPrsnlBnftContractsDecl>
  </ReturnData>
</Return>
