Liabilities / Assets
19th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 23-7111584 • 501(c)3 • Warwick, MD
Profile
Old Bohemia Historical Society, Inc. is dedicated to preserving the history of Warwick, Maryland through various events, educational programs, and fundraisers to raise awareness of the area's history.
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
6th percentile
Higher net margin than 6% 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
96th percentile
Faster asset growth than 96% of similar nonprofits.
Revenue Growth
6th percentile
Faster revenue growth than 6% of similar nonprofits.
Assets
Up$1,341,807
Up $779,869 (+139%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Up$1,341,807
Up $779,869 (+139%) from 2024
Revenue
Down$44,766
Down $39,001 (-47%) from 2024
Expenses
Down$70,188
Down $140,232 (-67%) from 2024
Net Income
Up-$25,422
Up $101,231 (+80%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
Old Bohemia Historical Society, Inc. is dedicated to preserving the history of Warwick, Maryland through various events, educational programs, and fundraisers to raise awareness of the area's history.
Old Bohemia Historical Society Inc is dedicated to preserving the history of Warwick Maryland through various events educational programs and fundraisers to raise awareness of the areas history
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $318,800 | $1,126,000 | ▲ $807,200 |
| Pd in Cap Srpls Land Bldg Eqp Fund | $318,800 | $1,126,000 | ▲ $807,200 |
| Cash and Non-Interest-Bearing Accounts | $243,138 | $215,807 | ▼ $27,331 |
| Rtn Earn Endowment Incm Other Fnds | $243,138 | $215,807 | ▼ $27,331 |
| Total Assets | $561,938 | $1,341,807 | ▲ $779,869 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Total Net Assets Fund Balance | $561,938 | $1,341,807 | ▲ $779,869 |
| Total Liabilities and Net Assets / Fund Balance | $561,938 | $1,341,807 | ▲ $779,869 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $722,400 | - | - |
| Land | $403,600 | - | - |
| Name | Title |
|---|---|
| Virginia Swyka | President |
| Marla Dill-palmer | Vice President |
| Kathleen Kobus | Corresponding Secretar |
| Karen Kegelman | Recording Secretary |
| Thomas Kane | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $70,188 |
| Total Fundraising Expense | $214 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Insurance | - | $6,327 | - | $6,327 |
| Other Expenses | - | $1,200 | - | $1,200 |
| Information Technology | - | $957 | - | $957 |
| Advertising | $472 | - | $214 | $686 |
| Office Expenses | - | $422 | - | $422 |
| Travel | - | $52 | - | $52 |
| Total Functional Expenses | $472 | $69,502 | $214 | $70,188 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Form 990 submitted to officers of Old Bohemia Historial Society prior to”
“filing document with IRS; review conducted by Vice-President and Treasurer,”
“All governing documents and financial reports are available upon request”
“for public review.”
“reviewed by Treasurer, minutes reviewed and approved by officers”
“reviewed by Treasurer for accuracy, posted on website”
“reviewed by Treasurer, obtained from financial records”
“reviewed by officers and members”
“reviewed by officers”
“reviewed by Treasurer, obtained from financial records”
“reviewed by Treasurer, obtained from financial records”
“reviewed by Treasurer, obtained from financial recordes”
“revieweed by Treasurer”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
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|---|---|---|
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| IRS990/AcctCompileOrReviewBasisGrp/ConsolAndSepBasisFinclStmtInd | 0 | X |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | Old Bohemia Historical Society Inc is dedicated to preserving the history of Warwick Maryland through various events educational programs and fundraisers to raise awareness of the areas history |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 214 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 472 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 686 |
| IRS990/AllOtherContributionsAmt | 0 | 80990 |
| IRS990/AuditCommitteeInd | 0 | false |
| IRS990/BackupWthldComplianceInd | 0 | false |
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| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | P O Box 61 |
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| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 21912 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 243138 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 215807 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
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| IRS990/CYInvestmentIncomeAmt | 0 | 2091 |
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| IRS990/CYOtherRevenueAmt | 0 | -43015 |
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| IRS990/CYRevenuesLessExpensesAmt | 0 | -25422 |
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| IRS990/CYTotalExpensesAmt | 0 | 70188 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 214 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 44766 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | renovations and upgrades to utilities to Old Bohemia Church |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | true |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 50642 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 5.00 |
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| 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/PersonNm | 0 | MARLA DILL-PALMER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | KATHLEEN KOBUS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | VIRGINIA SWYKA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | THOMAS KANE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | KAREN KEGELMAN |
| 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/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/TitleTxt | 0 | Vice President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Corresponding Secretar |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Recording Secretary |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1953 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/FundraisingAmt | 0 | 2673 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 133621 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 45840 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartVInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InfoInScheduleOPartXInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 957 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 957 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 6327 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 6327 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2091 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 2091 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 318800 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1126000 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1126000 |
| IRS990/LegalDomicileStateCd | 0 | MD |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 88855 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 2027 |
| IRS990/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | Old Bohemia Historical Society, Inc. is dedicated to preserving the history of Warwick, Maryland through various events, educational programs, and fundraisers to raise awareness of the area's history. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 561938 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1341807 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | -43015 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 422 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 422 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | Utilities |
| IRS990/OtherExpensesGrp/Desc | 1 | Repairs |
| IRS990/OtherExpensesGrp/Desc | 2 | Property Tax |
| IRS990/OtherExpensesGrp/Desc | 3 | Insurance |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 36068 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 21008 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 3468 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 1200 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 36068 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 21008 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 3468 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 1200 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/BOYAmt | 0 | 318800 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/EOYAmt | 0 | 1126000 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | Virginia Swyka |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -25422 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | -43015 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 80990 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt | 0 | 243138 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt | 0 | 215807 |
| IRS990ScheduleA/ChurchInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 722400 |
| IRS990ScheduleD/BuildingsGrp/InvestmentCostOrOtherBasisAmt | 0 | 722400 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 403600 |
| IRS990ScheduleD/LandGrp/InvestmentCostOrOtherBasisAmt | 0 | 403600 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 1126000 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Form 990 submitted to officers of Old Bohemia Historial Society prior to |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | filing document with IRS; review conducted by Vice-President and Treasurer, |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | All governing documents and financial reports are available upon request |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | for public review. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | reviewed by officers and members |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | reviewed by officers |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | reviewed by Treasurer, minutes reviewed and approved by officers |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 7 | reviewed by Treasurer for accuracy, posted on website |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 8 | reviewed by Treasurer, obtained from financial records |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 9 | reviewed by Treasurer, obtained from financial records |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 10 | reviewed by Treasurer, obtained from financial records |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 11 | reviewed by Treasurer, obtained from financial recordes |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 12 | revieweed by Treasurer |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Part VI Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Part VI Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Part VI Line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Part VI Line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Part III, line 4a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | Part V, Lines 1 - 17 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | Part VI, Lines 1 - 20 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 7 | Part VII, Lines 1-5 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 8 | Part VIII, Lines 3-5 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 9 | Part IX, Lines 1 - 25 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 10 | Part X, Lines 1 - 33 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 11 | Part XI, Lines 1-10 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 12 | Part XII, Lines 1- 3 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | MD |
| 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 | 561938 |
| IRS990/TotalAssetsEOYAmt | 0 | 1341807 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 561938 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 1341807 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 85690 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 214 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 69502 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 472 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 70188 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 561938 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 1341807 |
| IRS990/TotalOtherCompensationAmt | 0 | 0 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 50642 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2091 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 44766 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 561938 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 1341807 |
| IRS990/TotReportableCompRltdOrgAmt | 0 | 0 |
| IRS990/TravelGrp/ManagementAndGeneralAmt | 0 | 52 |
| IRS990/TravelGrp/TotalAmt | 0 | 52 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/USAddress/AddressLine1Txt | 0 | P O Box 61 |
| IRS990/USAddress/CityNm | 0 | Warwick |
| IRS990/USAddress/StateAbbreviationCd | 0 | MD |
| IRS990/USAddress/ZIPCd | 0 | 21912 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 0 |
| IRS990/VotingMembersIndependentCnt | 0 | 0 |
| IRS990/WebsiteAddressTxt | 0 | http://obhs-md.org |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | VIRGINIA SWYKA |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | President |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 3025302456 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2026-03-15 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | Old Bohemia Historical Society Inc |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | OLDB |
| ReturnHeader/Filer/EIN | 0 | 237111584 |
| ReturnHeader/Filer/InCareOfNm | 0 | % Virginia Swyka |
| ReturnHeader/Filer/PhoneNum | 0 | 3025302456 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | P O Box 61 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Warwick |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MD |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 21912 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 216745527 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | Elizabeth Jo Manning |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | P O Box 184 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine2Txt | 0 | 426 Cypress Street |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Millington |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MD |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 21651 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 4109285197 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2026-03-15 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | ELIZABETH J MANNING |
| ReturnHeader/PreparerPersonGrp/SelfEmployedInd | 0 | X |
| ReturnHeader/ReturnTs | 0 | 2026-03-15T08:21:03-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2025-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-12-31 |
| ReturnHeader/TaxYr | 0 | 2025 |
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