Liabilities / Assets
19th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 04-6203827 • 501(c)3 • Leominster, MA
Profile
The leominster historical society is a private, nonprofit organization consisting of dedicated volunteers who assist the public in learning about leominster's past, and a dues-paying membership who enjoy history in general, and the city's history in particular. Founded in 1906, the society preserves and presents items, articles, ephemera, family records, and historical publications, allowing the public access to most of these items.the historical society is located at the old brick schoolhouse, formerly field school, (behind city hall) at 17 school street, leominster, massachusetts. We welcome community use of the society's resources for research, and all are welcome to view exhibits at the society museum
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
19th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
20th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
92nd percentile
Higher net margin than 92% of similar nonprofits.
Top Officer Pay
40th percentile
Higher top officer pay than 40% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
51st percentile
Faster asset growth than 51% of similar nonprofits.
Revenue Growth
72nd percentile
Faster revenue growth than 72% of similar nonprofits.
Assets
Up$1,149,828
Up $43,854 (+4.0%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Up$1,149,828
Up $43,854 (+4.0%) from 2024
Revenue
Up$73,724
Up $15,584 (+27%) from 2024
Expenses
Down$29,870
Down $1,791 (-5.7%) from 2024
Net Income
Up$43,854
Up $17,375 (+66%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
The leominster historical society is a private, nonprofit organization consisting of dedicated volunteers who assist the public in learning about leominster's past, and a dues-paying membership who enjoy history in general, and the city's history in particular.
To preserve the history of leominster, ma
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $986,245 | $1,007,799 | ▲ $21,554 |
| Land, Buildings, and Equipment, Net | $109,097 | $100,291 | ▼ $8,806 |
| Cash and Non-Interest-Bearing Accounts | $10,632 | $41,738 | ▲ $31,106 |
| Total Assets | $1,105,974 | $1,149,828 | ▲ $43,854 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $605,974 | $649,828 | ▲ $43,854 |
| Net Assets With Donor Restrictions | $500,000 | $500,000 | → $0 |
| Total Net Assets Fund Balance | $1,105,974 | $1,149,828 | ▲ $43,854 |
| Total Liabilities and Net Assets / Fund Balance | $1,105,974 | $1,149,828 | ▲ $43,854 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Land Buildings | $72,026 | $178,204 | $250,230 |
| Buildings | $28,265 | - | $28,265 |
| Name | Title |
|---|---|
| Michael Marini | President |
| Diane Sanabria | Director |
| Martin Andrews | Director |
| Robin Newton | Director |
| Steve Leger | Director |
| Linda Pinder | Trustee |
| Mark Bodanza | Trustee |
| Angela Wallace | Assistant Tr |
| Nancy Bilotta | Recording Se |
| Henry Frye | Treasurer |
| Mary Marotta | Vice Preside |
| Line Item | Amount |
|---|---|
| Other Expenses | $29,870 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Depreciation Depletion | $8,806 | - | - | $8,806 |
| Occupancy | $8,531 | - | - | $8,531 |
| Insurance | $3,860 | - | - | $3,860 |
| Office Expenses | $844 | $1,265 | - | $2,109 |
| Fees for Services Accounting | $975 | - | - | $975 |
| Conferences and Meetings | $569 | - | - | $569 |
| Other Expenses | $348 | - | - | $348 |
| All Other Expenses | $291 | - | - | $291 |
| Total Functional Expenses | $28,605 | $1,265 | $0 | $29,870 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Annaul election of board memebers; annual meeting in may”
“No review was or will be conducted.”
“Request at historical society”
“The leominster historical society is a private, nonprofit organization consisting of dedicated volunteers who assist the public in learning about leominster's past, and a dues-paying membership who enjoy history in general, and the city's history in particular.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO PRESERVE THE HISTORY OF LEOMINSTER, MA |
| IRS990/AllOtherContributionsAmt | 0 | 483 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 291 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 291 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | THE ORGANIZATION |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9785375424 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 17 SCHOOL STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | LEOMINSTER |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 01453 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 10632 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 41738 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 569 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 569 |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 2073 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 22 |
| IRS990/CYOtherExpensesAmt | 0 | 29870 |
| IRS990/CYOtherRevenueAmt | 0 | 93 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 71536 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 43854 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 29870 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 73724 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
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| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 8806 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 8806 |
| IRS990/Desc | 0 | TO PRESERVE THE HISTORY AND TRADITIONS OF LEOMINSTER, MA |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 500000 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 500000 |
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| IRS990/ElectionOfBoardMembersInd | 0 | true |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
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| IRS990/FamilyOrBusinessRlnInd | 0 | false |
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| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 975 |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/InstitutionalTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/InstitutionalTrusteeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | MARTIN ANDREWS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | STEVE LEGER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ROBIN NEWTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | DIANE SANABRIA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MARK BODANZA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | LINDA PINDER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | NANCY BILOTTA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | HENRY FRYE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | MICHAEL MARINI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MARY MAROTTA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | ANGELA WALLACE |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | RECORDING SE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | VICE PRESIDE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | ASSISTANT TR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | false |
| IRS990/FormationYr | 0 | 1907 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 9 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 73724 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 9 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 3860 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 3860 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 22 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 22 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 178204 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 109097 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 100291 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 278495 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 1590 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | THE LEOMINSTER HISTORICAL SOCIETY IS A PRIVATE, NONPROFIT ORGANIZATION CONSISTING OF DEDICATED VOLUNTEERS WHO ASSIST THE PUBLIC IN LEARNING ABOUT LEOMINSTER'S PAST, AND A DUES-PAYING MEMBERSHIP WHO ENJOY HISTORY IN GENERAL, AND THE CITY'S HISTORY IN PARTICULAR. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1105974 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1149828 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 605974 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 649828 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 8531 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 8531 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 1265 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 844 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 2109 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | TELEPHONE |
| IRS990/OtherExpensesGrp/Desc | 1 | EXHIBIT EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 2 | ARCHIVAL SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 3 | WEBSITE HOSTING |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 2902 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 863 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 616 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 348 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 2902 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 863 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 616 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 348 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | MICHAEL MARINI |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | UNREALIZED GAIN ON INVESTMENT |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 71536 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 71536 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 4240 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 33 |
| IRS990/PYOtherExpensesAmt | 0 | 31661 |
| IRS990/PYOtherRevenueAmt | 0 | 96 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 53771 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 26479 |
| IRS990/PYTotalExpensesAmt | 0 | 31661 |
| IRS990/PYTotalRevenueAmt | 0 | 58140 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 43854 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 71536 |
| IRS990/RoyaltiesRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 93 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 93 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 986245 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1007799 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 2073 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 4240 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1267 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 467 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 490 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 8537 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 71651 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 53900 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 267 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 128083 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 14672 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 268573 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00000 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.99770 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 277110 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 73724 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 58140 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1534 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 128550 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 15162 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 277110 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 73724 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 58140 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1534 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 128550 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 15162 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 277110 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 28265 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 28265 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 72026 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 178204 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 250230 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 100291 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | false |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | THE LEOMINSTER HISTORICAL SOCIETY IS A PRIVATE, NONPROFIT ORGANIZATION CONSISTING OF DEDICATED VOLUNTEERS WHO ASSIST THE PUBLIC IN LEARNING ABOUT LEOMINSTER'S PAST, AND A DUES-PAYING MEMBERSHIP WHO ENJOY HISTORY IN GENERAL, AND THE CITY'S HISTORY IN PARTICULAR. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | ANNAUL ELECTION OF BOARD MEMEBERS; ANNUAL MEETING IN MAY |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | NO REVIEW WAS OR WILL BE CONDUCTED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | REQUEST AT HISTORICAL SOCIETY |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990 - ORGANIZATION'S MISSION |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 6, PART VI, LINE 7A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | MA |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 1105974 |
| IRS990/TotalAssetsEOYAmt | 0 | 1149828 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 1105974 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 1149828 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 2073 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 1265 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 28605 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 29870 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 1105974 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 1149828 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 28605 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 71536 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 71651 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 73724 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 1105974 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 1149828 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 99 CHESTNUT STREET |
| IRS990/USAddress/CityNm | 0 | LEOMINSTER |
| IRS990/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/USAddress/ZIPCd | 0 | 01453 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 9 |
| IRS990/VotingMembersIndependentCnt | 0 | 9 |
| IRS990/WebsiteAddressTxt | 0 | WWW.LEOMINSTERHISTORICAL.ORG |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | HENRY FRYE |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 9785375424 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-10-09 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | LEOMINSTER HISTORICAL SOCIETY INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | LEOM |
| ReturnHeader/Filer/EIN | 0 | 046203827 |
| ReturnHeader/Filer/PhoneNum | 0 | 9785375424 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 17 SCHOOL STREET |
| ReturnHeader/Filer/USAddress/CityNm | 0 | LEOMINSTER |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 01453 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | false |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 823067033 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | ROBERT CALZINI CPA LLC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 439 LANCASTER ST |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | LEOMINSTER |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 014534335 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 9785341711 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-10-09 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | KENNETH J HORVATH CPA |
| ReturnHeader/ReturnTs | 0 | 2025-10-15T10:41:24-04:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-05-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-04-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
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