﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" returnVersion="2023v6.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-02-04T14:19:39-05:00</ReturnTs>
    <TaxPeriodEndDt>2024-03-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>273746080</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Ralph Willett CPA PLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>3303 S Lindsay Rd STE 103</AddressLine1Txt>
        <CityNm>Gilbert</CityNm>
        <StateAbbreviationCd>AZ</StateAbbreviationCd>
        <ZIPCd>85297</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-04-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>860372907</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>GILBERT HISTORICAL SOCIETY INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>GILB</BusinessNameControlTxt>
      <USAddress>
        <AddressLine1Txt>PO BOX 1484</AddressLine1Txt>
        <CityNm>Gilbert</CityNm>
        <StateAbbreviationCd>AZ</StateAbbreviationCd>
        <ZIPCd>85299</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Holly Prutulsky</PersonNm>
      <PersonTitleTxt>Chair of the Bo</PersonTitleTxt>
      <PhoneNum>4809261577</PhoneNum>
      <SignatureDt>2025-02-03</SignatureDt>
      <DiscussWithPaidPreparerInd>false</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>Ralph Willett</PreparerPersonNm>
      <PTIN>P00249431</PTIN>
      <PhoneNum>4806992308</PhoneNum>
      <PreparationDt>2025-02-04</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="IRS990">
      <GrossReceiptsAmt>570451</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>www.hdsouth.org</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1980</FormationYr>
      <LegalDomicileStateCd>AZ</LegalDomicileStateCd>
      <ActivityOrMissionDesc>Maintain the history of Gilbert AZ and to illustrate how life was lived over the last approximately 100 years since Gilbert came into existence. Also promotes arts and culture through intergenerational programs.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>12</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>12</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>5</TotalEmployeeCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>193222</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>366852</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>13572</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>33515</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>3446</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>9067</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>117858</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>113698</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>328098</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>523132</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>126572</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>144350</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>37671</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>71252</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>84275</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>197824</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>228625</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>130274</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>294507</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>2313047</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>2581009</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>21816</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>11747</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>2291231</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>2569262</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>Maintain the history of Gilbert AZ and to illustrate how life was lived over the last approximately 100 years since Gilbert came into existence. Also promotes arts and culture through intergenerational programs.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>98589</ExpenseAmt>
      <Desc>The Gilbert Historical Society exists as a trustee of the history of Gilbert, AZ. The Society maintains a museum which is in a 1913 former school house. This is the only building in Gilbert on the National Register of Historic Places. The museum is open and available to the public. Its mission is to be the vibrant cornerstone of an intergenerational community that celebrates the past, inspires unity of all people and cultivates life enriching collaboration. Thousands of visitors and school children tour the museum each year.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>42252</ExpenseAmt>
        <Desc>Public programs at Gilbert Historical Society, Inc. , HD South cover six catergories - history, art, science, music, literature and health and wellness. We use a programming model called Communities for All Ages which is an intergenerational approach to doing business.</Desc>
      </ProgSrvcAccomActy2Grp>
      <TotalProgramServiceExpensesAmt>140841</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="990A">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd>false</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <DonorAdvisedFundInd>false</DonorAdvisedFundInd>
      <ConservationEasementsInd>false</ConservationEasementsInd>
      <CollectionsOfArtInd>false</CollectionsOfArtInd>
      <CreditCounselingInd>false</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>false</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="990D">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd>false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd>false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd>false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd>false</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd>false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd>false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd>false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd referenceDocumentId="990G">true</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>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>0</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>5</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>false</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>false</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
      <Form8899Filedind>false</Form8899Filedind>
      <Form1098CFiledInd>false</Form1098CFiledInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>12</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>12</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>true</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>true</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>true</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>true</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>true</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>true</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <WrittenPolicyOrProcedureInd>false</WrittenPolicyOrProcedureInd>
      <StatesWhereCopyOfReturnIsFldCd>AZ</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>DENISE LOPEZ</PersonNm>
        <PhoneNum>4809261577</PhoneNum>
        <USAddress>
          <AddressLine1Txt>PO BOX 1484</AddressLine1Txt>
          <CityNm>Gilbert</CityNm>
          <StateAbbreviationCd>AZ</StateAbbreviationCd>
          <ZIPCd>85299</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>DENISE LOPEZ</PersonNm>
        <TitleTxt>PRESIDENTCEO</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>70000</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEVE HARPOLE</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JASMINE HOLMES</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KIMERLY NISHIHARA</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NICK STROM</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>FAITH HEINRICH</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DEB CARR</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ALAN BALL</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DR SHANE MCCORD</PersonNm>
        <TitleTxt>VICE CHAIR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>HOLLY PRITULSKY</PersonNm>
        <TitleTxt>CHAIR OF BOARD</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CINDY NELSON</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ELAINE KESSLER</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>70000</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>0</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <MembershipDuesAmt>3975</MembershipDuesAmt>
      <GovernmentGrantsAmt>32500</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>330377</AllOtherContributionsAmt>
      <TotalContributionsAmt>366852</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Admissions</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>14861</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>14861</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Facility Rentals</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>18654</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>18654</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>33515</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>9067</TotalRevenueColumnAmt>
        <ExclusionAmt>9067</ExclusionAmt>
      </InvestmentIncomeGrp>
      <FundraisingGrossIncomeAmt>151110</FundraisingGrossIncomeAmt>
      <FundraisingDirectExpensesAmt>46300</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>104810</TotalRevenueColumnAmt>
        <ExclusionAmt>104810</ExclusionAmt>
      </NetIncmFromFundraisingEvtGrp>
      <GrossSalesOfInventoryAmt>9907</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>1019</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>8888</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>8888</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>523132</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>42403</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>113877</ExclusionAmt>
      </TotalRevenueGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>70000</TotalAmt>
        <ProgramServicesAmt>31500</ProgramServicesAmt>
        <ManagementAndGeneralAmt>21000</ManagementAndGeneralAmt>
        <FundraisingAmt>17500</FundraisingAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>58554</TotalAmt>
        <ProgramServicesAmt>30939</ProgramServicesAmt>
        <ManagementAndGeneralAmt>20444</ManagementAndGeneralAmt>
        <FundraisingAmt>7171</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>5944</TotalAmt>
        <ProgramServicesAmt>3091</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1664</ManagementAndGeneralAmt>
        <FundraisingAmt>1189</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>9852</TotalAmt>
        <ProgramServicesAmt>5123</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2759</ManagementAndGeneralAmt>
        <FundraisingAmt>1970</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>2002</TotalAmt>
        <ProgramServicesAmt>1502</ProgramServicesAmt>
        <ManagementAndGeneralAmt>300</ManagementAndGeneralAmt>
        <FundraisingAmt>200</FundraisingAmt>
      </FeesForServicesAccountingGrp>
      <AdvertisingGrp>
        <TotalAmt>3124</TotalAmt>
        <ProgramServicesAmt>3124</ProgramServicesAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>9862</TotalAmt>
        <ProgramServicesAmt>7397</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1479</ManagementAndGeneralAmt>
        <FundraisingAmt>986</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>4044</TotalAmt>
        <ProgramServicesAmt>3236</ProgramServicesAmt>
        <ManagementAndGeneralAmt>404</ManagementAndGeneralAmt>
        <FundraisingAmt>404</FundraisingAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>24018</TotalAmt>
        <ProgramServicesAmt>18014</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1201</ManagementAndGeneralAmt>
        <FundraisingAmt>4803</FundraisingAmt>
      </OccupancyGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>23450</TotalAmt>
        <ProgramServicesAmt>23450</ProgramServicesAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>14620</TotalAmt>
        <ProgramServicesAmt>10965</ProgramServicesAmt>
        <ManagementAndGeneralAmt>731</ManagementAndGeneralAmt>
        <FundraisingAmt>2924</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Restricted expense</Desc>
        <TotalAmt>532</TotalAmt>
        <ProgramServicesAmt>532</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Other non restricted</Desc>
        <TotalAmt>2623</TotalAmt>
        <ProgramServicesAmt>1968</ProgramServicesAmt>
        <ManagementAndGeneralAmt>131</ManagementAndGeneralAmt>
        <FundraisingAmt>524</FundraisingAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>228625</TotalAmt>
        <ProgramServicesAmt>140841</ProgramServicesAmt>
        <ManagementAndGeneralAmt>50113</ManagementAndGeneralAmt>
        <FundraisingAmt>37671</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>277953</BOYAmt>
        <EOYAmt>248083</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>823781</BOYAmt>
        <EOYAmt>1056692</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>4055</BOYAmt>
      </InventoriesForSaleOrUseGrp>
      <LandBldgEquipCostOrOtherBssAmt>1249849</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>122929</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>1120153</BOYAmt>
        <EOYAmt>1126920</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>87105</BOYAmt>
        <EOYAmt>149314</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>2313047</BOYAmt>
        <EOYAmt>2581009</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>21816</BOYAmt>
        <EOYAmt>11747</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>21816</BOYAmt>
        <EOYAmt>11747</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>2160404</BOYAmt>
        <EOYAmt>2438435</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>130827</BOYAmt>
        <EOYAmt>130827</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>2291231</BOYAmt>
        <EOYAmt>2569262</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>2313047</BOYAmt>
        <EOYAmt>2581009</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>294507</ReconcilationRevenueExpnssAmt>
      <PriorPeriodAdjustmentsAmt>-16476</PriorPeriodAdjustmentsAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="990A">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>504944</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>316242</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>221008</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>193222</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>366852</CurrentTaxYearAmt>
        <TotalAmt>1602268</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>504944</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>316242</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>221008</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>193222</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>366852</CurrentTaxYearAmt>
        <TotalAmt>1602268</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>1602268</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>4671</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4019</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4345</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3446</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>9067</CurrentTaxYearAmt>
        <TotalAmt>25548</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus2YearsAmt>3877</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>3877</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>1631693</TotalSupportAmt>
      <PublicSupportCY170Pct>0.98200</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.98220</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="990D">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>976618</OtherCostOrOtherBasisAmt>
        <BookValueAmt>976618</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>30435</OtherCostOrOtherBasisAmt>
        <BookValueAmt>30435</BookValueAmt>
      </BuildingsGrp>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>221674</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>122929</DepreciationAmt>
        <BookValueAmt>98745</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>21122</OtherCostOrOtherBasisAmt>
        <BookValueAmt>21122</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>1126920</TotalBookValueLandBuildingsAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="990G">
      <FundraisingEventInformationGrp>
        <Event1Nm>Night at Mus</Event1Nm>
        <Event2Nm>Santa Breakf</Event2Nm>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="990O">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Members or stockholder classes and rights Part VI line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>There are memberships to the Gilbert Historical Society Inc. They elect the governing body.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Member election for additional members Part VI line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Members vote for the Board.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 governing body review Part VI line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board reviews the 990 before it is submitted.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Conflict of interest policy compliance Part VI line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The Society has a conflict of interest policy. The board members review and sign off on the policy and requires them to disclose business relationships that could be a conflict.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>CEO executive director top management comp Part VI line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>The executive committee reviews the salary of the presdient/CEO annually and makes recommendations for compensation. This is then reviewed and approved by the Board of Directors.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other officer or key employee compensation Part VI line 15b</FormAndLineReferenceDesc>
        <ExplanationTxt>Comparative analysis is used to help set salaries of the top individuals and key employess.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing documents etc available to public Part VI line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The governing documents and the 990 are made available to the public on request.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>