Liabilities / Assets
62nd percentile
Higher debt load relative to assets than 62% of similar nonprofits.
EIN 54-0920730 • 501(c)3 • Arlington, VA
Profile
Our mission is to improve our community by building knowledge of our diverse history.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
62nd percentile
Higher debt load relative to assets than 62% of similar nonprofits.
Liabilities / Revenue
66th percentile
Higher debt load relative to revenue than 66% of similar nonprofits.
Net Margin
16th percentile
Higher net margin than 16% of similar nonprofits.
Top Officer Pay
89th percentile
Higher top officer pay than 89% of similar nonprofits.
Top officer pay equals 15.9% of source-year revenue.
Asset Growth
33rd percentile
Faster asset growth than 33% of similar nonprofits.
Revenue Growth
65th percentile
Faster revenue growth than 65% of similar nonprofits.
Assets
Down$275,238
Down $65,501 (-19%) from 2024
Liabilities
Up$577
Up $73 (+14%) from 2024
Net Assets
Down$274,661
Down $65,574 (-19%) from 2024
Revenue
Up$156,876
Up $15,752 (+11%) from 2024
Expenses
Up$222,450
Up $78,274 (+54%) from 2024
Net Income
Down-$65,574
Down $62,522 (-2049%) from 2024
Most recent year
2025 • Form 990EZDetailed filing. Detailed filing data is available for this year.
Building knowledge of our community's diverse history
| Description | Grants | Expenses |
|---|---|---|
| Arlington Historical Museum. We operate a museum that preserves important artifacts of Arlington's history and is visited by hundreds of community residents each year. | $0 | $55,000 |
| Ball-Sellers House. We operate and maintain the oldest house in Arlington, which is visited by hundreds of community residents each year. | $0 | $11,000 |
| Arlington Historical Magazine. We publish an annual magazine that distributes numerous well-researched articles concerning all aspects of Arlington's history. It is sold to hundreds of individuals and to libraries across the country. We also publish a quarterly newsletter. | $0 | $6,400 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Bethany Baker | Board Member/Museum Director | PT | $25,000 | - | $25,000 |
| Peter Vaselopulos | President | PT | $0 | - | - |
| Sean Denniston | Vice President | PT | $0 | - | - |
| Richard Samp | Treasurer | PT | $0 | - | - |
| Annette Benbow | Board Member/Ball-Sellers Director | PT | $0 | - | - |
| Jessica Kaplan | Board Member | PT | $0 | - | - |
| Annette Scherber | Board Member | PT | $0 | - | - |
| Martin Suydam | Board Member | PT | $0 | - | - |
| George Axiotis | Board Member | PT | $0 | - | - |
| Andrew McLeod | Board Member | PT | $0 | - | - |
“Other Revenue. Discounts/Refunds: $140”
“Membership fees: $828. Capital expenditures to renovate Hume Museum: $98,153. Capital expenditures to renovate Ball-Sellers House: $5,030.”
“Total Liabilities. Security deposit: $504. Credit card payable: $73.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990EZ/ActivitiesNotPreviouslyRptInd | 0 | 0 |
| IRS990EZ/BenefitsPaidToOrForMembersAmt | 0 | 0 |
| IRS990EZ/BooksInCareOfDetail/PersonNm | 0 | Richard Samp |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 7035052271 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 3815 North Ridgeview Road |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | Arlington |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | VA |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 22207 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 340739 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 275238 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | 0 |
| IRS990EZ/ContributionsGiftsGrantsEtcAmt | 0 | 121997 |
| IRS990EZ/CostOfGoodsSoldAmt | 0 | 4040 |
| IRS990EZ/CostOrOtherBasisExpenseSaleAmt | 0 | 0 |
| IRS990EZ/DirectIndirectPltclExpendAmt | 0 | 0 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | 0 |
| IRS990EZ/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | -65574 |
| IRS990EZ/FeesAndOtherPymtToIndCntrctAmt | 0 | 36450 |
| IRS990EZ/FiledScheduleAInd | 0 | 1 |
| IRS990EZ/ForeignFinancialAccountInd | 0 | 0 |
| IRS990EZ/ForeignOfficeInd | 0 | 0 |
| IRS990EZ/Form1120PolFiledInd | 0 | 0 |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 340739 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 275238 |
| IRS990EZ/FundraisingGrossIncomeAmt | 0 | 4856 |
| IRS990EZ/GainOrLossFromSaleOfAssetsAmt | 0 | 0 |
| IRS990EZ/GamingGrossIncomeAmt | 0 | 0 |
| IRS990EZ/GrantsAndSimilarAmountsPaidAmt | 0 | 0 |
| IRS990EZ/GrossProfitLossSlsOfInvntryAmt | 0 | 2272 |
| IRS990EZ/GrossReceiptsAmt | 0 | 163914 |
| IRS990EZ/GrossSalesOfInventoryAmt | 0 | 6312 |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InvestmentIncomeAmt | 0 | 18831 |
| IRS990EZ/LandAndBuildingsGrp/BOYAmt | 0 | 0 |
| IRS990EZ/LandAndBuildingsGrp/EOYAmt | 0 | 0 |
| IRS990EZ/LobbyingActivitiesInd | 0 | 0 |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | 0 |
| IRS990EZ/MembershipDuesAmt | 0 | 0 |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 340235 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 274661 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 340235 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 274661 |
| IRS990EZ/OccupancyRentUtltsAndMaintAmt | 0 | 34864 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 20 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 10 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 20 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 20 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 4 | 20 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 5 | 10 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 6 | 10 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 7 | 10 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 8 | 10 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 9 | 30 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 9 | 25000 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | Peter Vaselopulos |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | Sean Denniston |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | Richard Samp |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 3 | Annette Benbow |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 4 | Jessica Kaplan |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 5 | Annette Scherber |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 6 | Martin Suydam |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 7 | George Axiotis |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 8 | Andrew McLeod |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 9 | Bethany Baker |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | Vice President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | Treasurer |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 3 | Board Member/Ball-Sellers Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 4 | Board Member |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 5 | Board Member |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 6 | Board Member |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 7 | Board Member |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 8 | Board Member |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 9 | Board Member/Museum Director |
| IRS990EZ/OperateHospitalInd | 0 | 0 |
| IRS990EZ/Organization501c3Ind | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | 0 |
| IRS990EZ/OrganizationHadUBIInd | 0 | 0 |
| IRS990EZ/OtherAssetsTotalDetail/BOYAmt | 0 | 0 |
| IRS990EZ/OtherAssetsTotalDetail/EOYAmt | 0 | 0 |
| IRS990EZ/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 104011 |
| IRS990EZ/OtherRevenueTotalAmt | 0 | 140 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | 0 |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | Building knowledge of our community's diverse history |
| IRS990EZ/PrintingPublicationsPostageAmt | 0 | 47125 |
| IRS990EZ/ProgramServiceRevenueAmt | 0 | 11778 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | Arlington Historical Museum. We operate a museum that preserves important artifacts of Arlington's history and is visited by hundreds of community residents each year. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 1 | Ball-Sellers House. We operate and maintain the oldest house in Arlington, which is visited by hundreds of community residents each year. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 2 | Arlington Historical Magazine. We publish an annual magazine that distributes numerous well-researched articles concerning all aspects of Arlington's history. It is sold to hundreds of individuals and to libraries across the country. We also publish a quarterly newsletter. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 1 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 2 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 55000 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 1 | 11000 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 2 | 6400 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990EZ/SalariesOtherCompEmplBnftAmt | 0 | 0 |
| IRS990EZ/SaleOfAssetsGrossAmt | 0 | 0 |
| IRS990EZ/SchoolOperatingInd | 0 | 0 |
| IRS990EZ/SpecialEventsDirectExpensesAmt | 0 | 2998 |
| IRS990EZ/SpecialEventsNetIncomeLossAmt | 0 | 1858 |
| IRS990EZ/SubjectToProxyTaxInd | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 504 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 577 |
| IRS990EZ/TanningServicesProvidedInd | 0 | 0 |
| IRS990EZ/TaxImposedOnOrganizationMgrAmt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4911Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4912Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4955Amt | 0 | 0 |
| IRS990EZ/TaxReimbursedByOrganizationAmt | 0 | 0 |
| IRS990EZ/TotalExpensesAmt | 0 | 222450 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 72400 |
| IRS990EZ/TotalRevenueAmt | 0 | 156876 |
| IRS990EZ/TransactionWithControlEntInd | 0 | 0 |
| IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990EZ/WebsiteAddressTxt | 0 | arlhist.org |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 121997 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 110801 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 94977 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 136538 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 164878 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 629191 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 18831 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 17707 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 11151 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 702 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 28982 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 77373 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 22946 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 12586 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 35532 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 18831 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 17707 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 11151 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 702 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 28982 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 77373 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.10426 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.09069 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.89574 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.90931 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 664723 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 144943 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 123387 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 94977 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 136538 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 164878 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 664723 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 163774 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 141094 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 106128 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 137240 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 193860 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 742096 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Other Revenue. Discounts/Refunds: $140 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Membership fees: $828. Capital expenditures to renovate Hume Museum: $98,153. Capital expenditures to renovate Ball-Sellers House: $5,030. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | Total Liabilities. Security deposit: $504. Credit card payable: $73. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990-EZ, Part I, Line 8 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990-EZ, Part I, Line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990-EZ, Part II, Line 26 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Richard Samp |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | Treasurer |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 7035052271 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-11-01 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | ARLINGTON HISTORICAL SOCIETY INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | ARLI |
| ReturnHeader/Filer/EIN | 0 | 540920730 |
| ReturnHeader/Filer/PhoneNum | 0 | 7035052271 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | PO Box 100402 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Arlington |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | VA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 22207 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 1 |
| ReturnHeader/ReturnTs | 0 | 2025-11-01T00:41:05-07:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-06-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
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