﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2024v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-02-12T17:19:29-05:00</ReturnTs>
    <TaxPeriodEndDt>2025-09-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>464342729</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>SHELTON MEAD &amp; SHELTON PLLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>800 E BORDER ST</AddressLine1Txt>
        <CityNm>ARLINGTON</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>76010</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-10-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>751653065</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>ARLINGTON HISTORICAL SOCIETY INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ARLI</BusinessNameControlTxt>
      <PhoneNum>8174604001</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1616 W ABRAM ST</AddressLine1Txt>
        <CityNm>ARLINGTON</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>76013</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>MOLLIE GANN</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>8174604001</PhoneNum>
      <SignatureDt>2026-02-06</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>RYAN C HILL CPA</PreparerPersonNm>
      <PTIN>P01057373</PTIN>
      <PhoneNum>8174615551</PhoneNum>
      <PreparationDt>2026-02-12</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc2">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WWW.HISTORICALARLINGTON.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc3">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>63073</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>61597</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>838</ProgramServiceRevenueAmt>
      <GrossSalesOfInventoryAmt>638</GrossSalesOfInventoryAmt>
      <GrossProfitLossSlsOfInvntryAmt>638</GrossProfitLossSlsOfInvntryAmt>
      <TotalRevenueAmt>63073</TotalRevenueAmt>
      <SalariesOtherCompEmplBnftAmt>28100</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>4130</FeesAndOtherPymtToIndCntrctAmt>
      <PrintingPublicationsPostageAmt>277</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>46633</OtherExpensesTotalAmt>
      <TotalExpensesAmt>79140</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-16067</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>148674</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>132607</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>45518</BOYAmt>
        <EOYAmt>33467</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <LandAndBuildingsGrp>
        <BOYAmt>9000</BOYAmt>
        <EOYAmt>9000</EOYAmt>
      </LandAndBuildingsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>94156</BOYAmt>
        <EOYAmt>90140</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>148674</BOYAmt>
        <EOYAmt>132607</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>148674</BOYAmt>
        <EOYAmt>132607</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>TO COLLECT, PRESERVE AND INTERPRET THE CITY OF ARLINGTON,TX HISTORY</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>MAINTAINED THE HISTORIC FIELDER HOUSE AND KNAPP HERITAGE PARK.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>30445</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>OFFER ENRICHMENT OPPORTUNITIES FOR PEOPLE OF ALL AGES TO LEARN ABOUT THE HISTORY OF THE CITY OF ARLINGTON.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>HOSTED THE FRONT STREET FESTIVAL</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>769</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>OTHER ACTIVITIES IN RELATION TO THE PRESERVATION OF ARLINGTON TEXAS HISTORICAL DOCUMENTS AND INFORMATION.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>31214</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>GERALDINE MILLS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>25.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>NANCY TICE</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>25.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CLAUDIA PERKINS</PersonNm>
        <TitleTxt>VP</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>25.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LYDIA BROSOWZKY</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>25.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MOLLIE GANN</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>25.00</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>MOLLIE GANN</PersonNm>
        <USAddress>
          <AddressLine1Txt>1616 W ABRAM</AddressLine1Txt>
          <CityNm>ARLINGTON</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>76013</ZIPCd>
        </USAddress>
        <PhoneNum>8174604001</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>59656</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>81383</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>75892</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>56705</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>61597</CurrentTaxYearAmt>
        <TotalAmt>335233</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>59656</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>81383</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>75892</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>56705</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>61597</CurrentTaxYearAmt>
        <TotalAmt>335233</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>335233</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>1</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>167</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>43</CurrentTaxYearMinus1YearAmt>
        <TotalAmt>216</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>18059</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>187</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1261</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>779</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>638</CurrentTaxYearAmt>
        <TotalAmt>20924</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>356373</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>21557</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.94070</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.94110</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART II, LINE 10</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCOME 20,286</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES OFFICE SUPPLIES 2,206 DONATIONS/CONTRIBUTIONS 2,100 DUES &amp; MEMBERSHIP 115 EVENT EXPENSES 769 FIELDER HOUSE ADVERTISING 437 FIELDER HOUSE INSURANCE 6,338 FIELDER HOUSE PERMITS 40 FIELDER HOUSE SUPPLIES 675 FIELDER HOUSE R&amp;M 4,160 FIELDER HOUSE SECURITY 696 FIELDER HOUSE TELEPHONE 3,486 FIELDER HOUSE UTILITES 10,383 KNAPP HERITAGE R&amp;M 1,544 KNAPP HERITAGE LICENSE AN 100 KNAPP HERITAGE UTILITES 1,739 KNAPP HERITAGE SUPPLIES 570 REPAIR &amp; MAINTENANCE 6,747 TAXES - OTHER 392 MEETING EXPENSE 85 BANK CHARGES 35 NON-INVESTMENT DEPRECIATION 4,016 TOTAL 46,633</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24</FormAndLineReferenceDesc>
        <ExplanationTxt>INVENTORIES FOR SALE OR USE 6,107 6,107 OFFICE EQUIPMENT 14,507 14,507 LESS ACCUMULATED DEPRECIATION 11,038 12,426 LEASEHOLD IMPROVEMENTS 116,737 116,737 LESS ACCUMULATED DEPRECIATION 32,157 34,785 TOTAL 94,156 90,140</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 31</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER ACTIVITIES IN RELATION TO THE PRESERVATION OF ARLINGTON TEXAS HISTORICAL DOCUMENTS AND INFORMATION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>