﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2025v4.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-09-16T13:03:26-04:00</ReturnTs>
    <TaxPeriodEndDt>2025-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>331124754</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>KI PATTON CPA</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>4712 E 2ND ST 141</AddressLine1Txt>
        <CityNm>LONG BEACH</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>908035309</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>952143371</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>THE HISTORICAL SOCIETY OF POMONA</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>VALLEY</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>HIST</BusinessNameControlTxt>
      <PhoneNum>9096232198</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 1527</AddressLine1Txt>
        <CityNm>POMONA</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>91767</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>BENNY AYALA</PersonNm>
      <PersonTitleTxt>DIRECTOR</PersonTitleTxt>
      <PhoneNum>9096232198</PhoneNum>
      <SignatureDt>2026-09-16</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>KATHLEEN I PATTON</PreparerPersonNm>
      <PTIN>P00555203</PTIN>
      <PhoneNum>5624953213</PhoneNum>
      <PreparationDt>2026-09-16</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2025</TaxYr>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="RetDoc4" referenceDocumentId="RetDoc6">
      <PrincipalOfficerNm>DEBORAH CLIFFORD</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>585 EAST HOLT AVENUE</AddressLine1Txt>
        <CityNm>POMONA</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>91767</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>3194985</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.POMONAHISTORICAL.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1934</FormationYr>
      <LegalDomicileStateCd>CA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>OUR MISSION IS TO MAKE THE RICH AND DIVERSE HISTORY OF THE POMONA VALLEY A MEANINGFUL PART OF PEOPLE'S LIVES. THE POMONA VALLEY AND THE CITY OF POMONA IN PARTICULAR HAVE A RICH AND INTERESTING HISTORY, AND THE HISTORICAL SOCIETY OF POMONA VALLEY IS PROUD TO SHARE IT WITH THE PUBLIC. WE PROTECT AND PRESERVE IMPORTANT HISTORIC SITES,RECORDS, AND ARTIFACTS AND EDUCATE THE PUBLIC ABOUT THE AREA'S HISTORY.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>13</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>11</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>5</TotalEmployeeCnt>
      <TotalVolunteersCnt>50</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>955916</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>2211708</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>51544</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>13965</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>27692</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>1512</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>43735</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>927312</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>1078887</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>3154497</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>52824</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>92187</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>550</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>583143</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>2376681</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>635967</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>2468868</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>442920</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>685629</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>1712086</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>2401668</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>23557</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>27510</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>1688529</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>2374158</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>OUR MISSION IS TO MAKE THE RICH AND DIVERSE HISTORY OF THE POMONA VALLEY A MEANINGFUL PART OF PEOPLE'S LIVES. THE POMONA VALLEY AND THE CITY OF POMONA IN PARTICULAR HAVE A RICH AND INTERESTING HISTORY, AND THE HISTORICAL SOCIETY OF POMONA VALLEY IS PROUD TO SHARE IT WITH THE PUBLIC. WE PROTECT AND PRESERVE IMPORTANT HISTORIC SITES,RECORDS, AND ARTIFACTS AND EDUCATE THE PUBLIC ABOUT THE AREA'S HISTORY.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>137823</ExpenseAmt>
      <RevenueAmt>13965</RevenueAmt>
      <Desc>HISTORICAL STRUCTURES WERE MAINTAINED. TOURS WERE PROVIDED TO SCHOOL CHILDREN AND OTHER MEMBERS OF THE PUBLIC.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>448360</ExpenseAmt>
        <Desc>WORK WAS CONTINUTED ON THE E-BELL FIRE RECOVERY.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <ExpenseAmt>1854841</ExpenseAmt>
        <Desc>E-BELL REVIVAL FUND FOR REPAIRS AND MAINTENANCE OF HISTORIC BUILDING. IN SEPTEMBER, 2024 WE BEGAN A REPAIR PROJECT THAT INCLUDED PAINTING AND PLASTER REPAIR IN THE BALLROOM, REFINISHED FLOORS, NEW STAGE CURTAINS AND NEW DRAPES AND UPDATING ELECTRICAL AND PLUMBING. WE BEGAN WORK ON A NEW FOUNDATION. THIS PART PROJECT WAS SPREAD OVER OCTOBER TO END OF FEBRUARY, 2025.</Desc>
      </ProgSrvcAccomActy3Grp>
      <TotalProgramServiceExpensesAmt>2441024</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc7">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc5">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc5">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc5">true</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc5">false</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd referenceDocumentId="RetDoc5">true</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc5">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc5">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc5">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc5">true</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc5">true</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc5">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc5">false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc5">false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>false</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>false</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>false</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd>false</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>4</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>5</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>13</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>11</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>true</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>false</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>false</ConflictOfInterestPolicyInd>
      <WhistleblowerPolicyInd>false</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>false</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>true</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>CA</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>MIKE SCHOWALTER</PersonNm>
        <PhoneNum>9096232198</PhoneNum>
        <USAddress>
          <AddressLine1Txt>585 EAST HOLT AVENUE</AddressLine1Txt>
          <CityNm>POMONA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>91767</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>DEBORAH CLIFFORD</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MIKE SCHOWALTER</PersonNm>
        <TitleTxt>VP</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN CLIFFORD</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAN BRAUNSTEIN</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ALICE GOMEZ</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CARSON BENNIT</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BENNY AYALA</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DONNA OTERO-MANZANARES</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RENEE BARBEE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAY MUNNS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ALEJANDRO MARTINEZ</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GLORIA AYALA</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PAUL RUELAS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <GovernmentGrantsAmt>1932813</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>278895</AllOtherContributionsAmt>
      <TotalContributionsAmt>2211708</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>TOURS</Desc>
        <TotalRevenueColumnAmt>6421</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>6421</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>FACILITY RENT</Desc>
        <TotalRevenueColumnAmt>4800</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4800</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>EVENTS</Desc>
        <TotalRevenueColumnAmt>2744</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2744</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>13965</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>1512</TotalRevenueColumnAmt>
        <ExclusionAmt>1512</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>382</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>382</RelatedOrExemptFuncIncomeAmt>
      </RoyaltiesRevenueGrp>
      <GrossRentsGrp>
        <RealAmt>17442</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>40098</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>-22656</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>-22656</TotalRevenueColumnAmt>
        <ExclusionAmt>-22656</ExclusionAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossSalesOfInventoryAmt>390</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>390</CostOfGoodsSoldAmt>
      <OtherRevenueMiscGrp>
        <Desc>FIRE INSURANCE REOVERY</Desc>
        <TotalRevenueColumnAmt>949586</TotalRevenueColumnAmt>
        <ExclusionAmt>949586</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>949586</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>3154497</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>14347</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>928442</ExclusionAmt>
      </TotalRevenueGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>83937</TotalAmt>
        <ProgramServicesAmt>62953</ProgramServicesAmt>
        <ManagementAndGeneralAmt>20984</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <PayrollTaxesGrp>
        <TotalAmt>8250</TotalAmt>
        <ProgramServicesAmt>6187</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2063</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>17001</TotalAmt>
        <ProgramServicesAmt>14906</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2095</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>1100</TotalAmt>
        <ProgramServicesAmt>550</ProgramServicesAmt>
        <FundraisingAmt>550</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>1984</TotalAmt>
        <ProgramServicesAmt>752</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1232</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>2487</TotalAmt>
        <ProgramServicesAmt>2487</ProgramServicesAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>7576</TotalAmt>
        <ProgramServicesAmt>7576</ProgramServicesAmt>
      </OccupancyGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>1798</TotalAmt>
        <ProgramServicesAmt>1798</ProgramServicesAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>3766</TotalAmt>
        <ProgramServicesAmt>3201</ProgramServicesAmt>
        <ManagementAndGeneralAmt>565</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>REVIVAL GRANT EXPENSES</Desc>
        <TotalAmt>1854841</TotalAmt>
        <ProgramServicesAmt>1854841</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>FIRE RECOVERY EXPENSES</Desc>
        <TotalAmt>448360</TotalAmt>
        <ProgramServicesAmt>448360</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>SECURITY</Desc>
        <TotalAmt>11535</TotalAmt>
        <ProgramServicesAmt>11535</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>HODGE ESTATE EXPENSES</Desc>
        <TotalAmt>8498</TotalAmt>
        <ProgramServicesAmt>8498</ProgramServicesAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>17735</TotalAmt>
        <ProgramServicesAmt>17380</ProgramServicesAmt>
        <ManagementAndGeneralAmt>355</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>2468868</TotalAmt>
        <ProgramServicesAmt>2441024</ProgramServicesAmt>
        <ManagementAndGeneralAmt>27294</ManagementAndGeneralAmt>
        <FundraisingAmt>550</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>342074</BOYAmt>
        <EOYAmt>605388</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>278689</BOYAmt>
        <EOYAmt>722060</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>1200</BOYAmt>
        <EOYAmt>1200</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>9166</BOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>942673</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>194128</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>756482</BOYAmt>
        <EOYAmt>748545</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>324475</BOYAmt>
        <EOYAmt>324475</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>1712086</BOYAmt>
        <EOYAmt>2401668</EOYAmt>
      </TotalAssetsGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>23557</BOYAmt>
        <EOYAmt>27510</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>23557</BOYAmt>
        <EOYAmt>27510</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
      <PdInCapSrplsLandBldgEqpFundGrp>
        <BOYAmt>521842</BOYAmt>
      </PdInCapSrplsLandBldgEqpFundGrp>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>1166687</BOYAmt>
        <EOYAmt>2374158</EOYAmt>
      </RtnEarnEndowmentIncmOthFndsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>1688529</BOYAmt>
        <EOYAmt>2374158</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1712086</BOYAmt>
        <EOYAmt>2401668</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>685629</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc7">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>15226</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>12029</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>33366</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>24986</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>6183</CurrentTaxYearAmt>
        <TotalAmt>91790</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>15226</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>12029</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>33366</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>24986</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>6183</CurrentTaxYearAmt>
        <TotalAmt>91790</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>91790</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>35927</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>98094</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>60786</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>38852</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>18954</CurrentTaxYearAmt>
        <TotalAmt>252613</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>4098</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>3071</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1476</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>50402</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>949976</CurrentTaxYearAmt>
        <TotalAmt>1009023</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>1353426</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>344404</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.06780</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.23810</PublicSupportPY170Pct>
      <TenPctFactsCrcmstncsTestPYInd>X</TenPctFactsCrcmstncsTestPYInd>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SUPPORTING SCHEDULE</FormAndLineReferenceDesc>
        <ExplanationTxt>HISTORICAL BUILDING RENOVATION 1,932,813 ESTATE 272,712</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART II, LINE 10</FormAndLineReferenceDesc>
        <ExplanationTxt>MERCHANDISE SALES 9,047 INSURANCE RECOVERY 50,000</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART II, LINE 17B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION RECEIVES RENTAL INCOME FROM ONE OF THE HISTORICAL BUILDINGS. THE BUILDING INCLUDES A MUSEUM WITH MANY ITEMS OF HISTORICAL SIGNIFICANCE. THE RENTAL OF THE BUILDING FOR SPECIAL EVENTS PROVIDES THE GENERAL PUBLIC WITH ACCESS TO ITEMS OF HISTORICAL SIGNIFICANCE. THE ORGANIZATION RECEIVED INSURANCE PROCEEDS IN 2025 TO FUND RECOVERY FROM A FIRE.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc5">
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <LandGrp>
        <OtherCostOrOtherBasisAmt>611616</OtherCostOrOtherBasisAmt>
        <BookValueAmt>611616</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>290072</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>155893</DepreciationAmt>
        <BookValueAmt>134179</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>6628</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>6628</DepreciationAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>34357</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>31607</DepreciationAmt>
        <BookValueAmt>2750</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>748545</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>ARTIFACTS &amp; ART COLLECTION</Desc>
        <BookValueAmt>324475</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>324475</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>REFUNDABLE DEPOSITS</Desc>
        <Amt>25366</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>SPECIAL FUNDS</Desc>
        <Amt>1652</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>PAYROLL LIABILITY</Desc>
        <Amt>337</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>SALES TAX PAYABLE</Desc>
        <Amt>155</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>27510</TotalLiabilityAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc6">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>OUR MISSION IS TO MAKE THE RICH AND DIVERSE HISTORY OF THE POMONA VALLEY A MEANINGFUL PART OF PEOPLE'S LIVES. THE POMONA VALLEY AND THE CITY OF POMONA IN PARTICULAR HAVE A RICH AND INTERESTING HISTORY, AND THE HISTORICAL SOCIETY OF POMONA VALLEY IS PROUD TO SHARE IT WITH THE PUBLIC. WE PROTECT AND PRESERVE IMPORTANT HISTORIC SITES,RECORDS, AND ARTIFACTS AND EDUCATE THE PUBLIC ABOUT THE AREA'S HISTORY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>DEBORAH CLIFFORD JOHN CLIFFORD PRESIDENT SECRETARY SPOUSE</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PRESIDENT AND TREASURER REVEIW THE FORM 990 BEFORE THE FORM IS SIGNED AND FILED. THE BOARD OF DIRECTORS REVIEWS THE FORM 990 AT THE NEXT BOARD MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>NOT APPLICABLE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>NOT APPLICABLE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS ARE MADE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>