Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 23-7177668 • 501(c)3 • Waltham, MA
Profile
Multisector collaboration to showcase artifacts pertaining to the history of the city of waltham.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
61st percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
67th percentile
Higher net margin than 67% of similar nonprofits.
Top Officer Pay
84th percentile
Higher top officer pay than 84% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
62nd percentile
Faster asset growth than 62% of similar nonprofits.
Revenue Growth
36th percentile
Faster revenue growth than 36% of similar nonprofits.
Assets
Up$31,882
Up $3,452 (+12%) from 2022
Liabilities
Flat$0
Flat from 2022
Net Assets
Up$31,882
Up $3,452 (+12%) from 2022
Revenue
Up$20,413
Up $9,477 (+87%) from 2022
Expenses
Up$16,961
Up $7,430 (+78%) from 2022
Net Income
Up$3,452
Up $2,047 (+146%) from 2022
Most recent year
2023 • Form 990EZDetailed filing. Detailed filing data is available for this year.
Multisector collaboration to showcase artifacts pertaining to the history of the city of waltham.
| Description | Grants | Expenses |
|---|---|---|
| MUSEUM PROGRAMS | $0 | $4,092 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| ROBIN CAPELLO | Director | PT | $0 | - | - |
| PATRICIA STROM | Treasurer | PT | $0 | - | - |
| THOMAS ARENA | President | - | $0 | - | - |
| SALLY COLLURA | Director | - | $0 | - | - |
| JESSICA LUCCI | Director | - | $0 | - | - |
| MICHAEL SQUILLANTE | Director | - | $0 | - | - |
| WILLIAM HANLEY | Clerk | - | $0 | - | - |
| RONALD WEST | Vice President | - | $0 | - | - |
| MARY BAKER | Director | - | $0 | - | - |
| JANET DRISCOLL | Director | - | $0 | - | - |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| Events and Sales | $1,030 | $1,030 | $651 | $379 |
| Total Events | $1,030 | $1,030 | $651 | $379 |
“Description: INTEREST. Amount: 1.”
“Description: INSURANCE. Amount: 3232. Description: SECURITY. Amount: 430. Description: TELEPHONE & INTERNET. Amount: 2288. Description: OFFICE. Amount: 862. Description: DUES & SUBSCRIPTIONS. Amount: 453. Description: WEBSITE. Amount: 83. Description: MISCELLANEOUS. Amount: 608. Description: NEWSLETTER. Amount: 140. Total to Form 990-EZ, line 16: 8096.”
“Description: INVENTORY. Beg. of Year Amount: 0. End of Year Amount: 1340.”
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/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | ORGANIZATION |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 7818939020 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 25 LEXINGTON STREET |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | WALTHAM |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 024524415 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 28430 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 30542 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | 0 |
| IRS990EZ/ContributionsGiftsGrantsEtcAmt | 0 | 14116 |
| IRS990EZ/DirectIndirectPltclExpendAmt | 0 | 0 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | 0 |
| IRS990EZ/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | 3452 |
| IRS990EZ/FeesAndOtherPymtToIndCntrctAmt | 0 | 6300 |
| IRS990EZ/FiledScheduleAInd | 0 | 1 |
| IRS990EZ/ForeignFinancialAccountInd | 0 | 0 |
| IRS990EZ/ForeignOfficeInd | 0 | 0 |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 28430 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 31882 |
| IRS990EZ/FundraisingGrossIncomeAmt | 0 | 1030 |
| IRS990EZ/GrossReceiptsAmt | 0 | 21064 |
| IRS990EZ/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartVInd | 0 | X |
| IRS990EZ/InvestmentIncomeAmt | 0 | 1 |
| IRS990EZ/LobbyingActivitiesInd | 0 | 0 |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | 0 |
| IRS990EZ/MembershipDuesAmt | 0 | 5917 |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 28430 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 31882 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 28430 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 31882 |
| IRS990EZ/OccupancyRentUtltsAndMaintAmt | 0 | 2565 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 8.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 8.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 4 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 5 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 6 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 7 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 8 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 9 | 1.00 |
| 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 | 0 |
| 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 | ROBIN CAPELLO |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | PATRICIA STROM |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | THOMAS ARENA |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 3 | SALLY COLLURA |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 4 | JESSICA LUCCI |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 5 | MICHAEL SQUILLANTE |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 6 | WILLIAM HANLEY |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 7 | RONALD WEST |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 8 | MARY BAKER |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 9 | JANET DRISCOLL |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | DIRECTOR |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | TREASURER |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | PRESIDENT |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 3 | DIRECTOR |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 4 | DIRECTOR |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 5 | DIRECTOR |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 6 | CLERK |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 7 | VICE PRESIDENT |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 8 | DIRECTOR |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 9 | 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 | 1340 |
| IRS990EZ/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 8096 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | 0 |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | MULTISECTOR COLLABORATION TO SHOWCASE ARTIFACTS PERTAINING TO THE HISTORY OF THE CITY OF WALTHAM. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | MUSEUM PROGRAMS |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 4092 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990EZ/SchoolOperatingInd | 0 | 0 |
| IRS990EZ/SpecialEventsDirectExpensesAmt | 0 | 651 |
| IRS990EZ/SpecialEventsNetIncomeLossAmt | 0 | 379 |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 0 | MA |
| IRS990EZ/SubjectToProxyTaxInd | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| 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 | 16961 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 4092 |
| IRS990EZ/TotalRevenueAmt | 0 | 20413 |
| IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990EZ/WebsiteAddressTxt | 0 | WALTHAMMUSEUM.ORG |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 19085 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 9302 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 10291 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 14839 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 7416 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 60933 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 1 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 2 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 7 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 30 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 41 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 1165 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 1630 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 20 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 157 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 2327 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 5299 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus4YearsAmt | 0 | 171 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt | 0 | 171 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 1 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 2 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 7 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 30 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 41 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00060 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00120 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.99940 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.99880 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 66403 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 20250 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 10932 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 10311 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 14996 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 9914 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 66403 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 20251 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 10934 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 10312 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 15003 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 9944 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 66444 |
| 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 |
| IRS990ScheduleG/FundraisingEventInformationGrp/DirectExpenseSummaryEventsAmt | 0 | 651 |
| IRS990ScheduleG/FundraisingEventInformationGrp/Event1Nm | 0 | EVENTS AND SALES |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsEvent1Amt | 0 | 1030 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsTotalAmt | 0 | 1030 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossRevenueEvent1Amt | 0 | 1030 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossRevenueTotalEventsAmt | 0 | 1030 |
| IRS990ScheduleG/FundraisingEventInformationGrp/NetIncomeSummaryAmt | 0 | 379 |
| IRS990ScheduleG/FundraisingEventInformationGrp/OthDirectExpnssTotalEventsAmt | 0 | 651 |
| IRS990ScheduleG/FundraisingEventInformationGrp/OtherDirectExpensesEvent1Amt | 0 | 651 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Description: INTEREST. Amount: 1. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Description: INSURANCE. Amount: 3232. Description: SECURITY. Amount: 430. Description: TELEPHONE & INTERNET. Amount: 2288. Description: OFFICE. Amount: 862. Description: DUES & SUBSCRIPTIONS. Amount: 453. Description: WEBSITE. Amount: 83. Description: MISCELLANEOUS. Amount: 608. Description: NEWSLETTER. Amount: 140. Total to Form 990-EZ, line 16: 8096. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | Description: INVENTORY. Beg. of Year Amount: 0. End of Year Amount: 1340. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990-EZ, Part I, Line 4 - Other Investment Income |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990-EZ, Part I, Line 16 - Other Expenses |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990-EZ, Part II, Line 24 - Other Assets |
| TransferPrsnlBnftContractsDecl/DeclarationDesc | 0 | The organization did not, during the year, receive any funds, directly,or indirectly, to pay premiums on a personal benefit contract.The organization, did not, during the year, pay any premiums, directly,or indirectly, on a personal benefit contract. |
| ReturnHeader/BuildTS | 0 | 2024-10-15 13:58:12Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | THOMAS ARENA |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRESIDENT |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 7818939020 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-01-15 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | WALTHAM MUSEUM INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | WALT |
| ReturnHeader/Filer/EIN | 0 | 237177668 |
| ReturnHeader/Filer/PhoneNum | 0 | 7818939020 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 25 LEXINGTON STREET |
| ReturnHeader/Filer/USAddress/CityNm | 0 | WALTHAM |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 024524415 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 0 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 042807416 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | Koundakjian & Co PC CPA's |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 9 Meriam St Suite 2 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Lexington |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 024205312 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 7818611170 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-01-14 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | Donald K Koundakjian |
| ReturnHeader/ReturnTs | 0 | 2025-01-23T13:52:51-06:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2023-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2023-12-31 |
| ReturnHeader/TaxYr | 0 | 2023 |
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