Liabilities / Assets
18th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 04-2488505 • 501(c)3 • Arlington, MA
Profile
The schwamb mill preservation trust inc exists for the preservation, maintenance, and enhancement of the old schwamb mill in arlington massachusetts.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
18th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
19th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
89th percentile
Higher net margin than 89% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
60th percentile
Faster asset growth than 60% of similar nonprofits.
Revenue Growth
69th percentile
Faster revenue growth than 69% of similar nonprofits.
Assets
Up$1,100,904
Up $80,121 (+7.8%) from 2023
Liabilities
Flat$0
Flat from 2023
Net Assets
Up$1,100,904
Up $80,121 (+7.8%) from 2023
Revenue
Up$166,035
Up $28,402 (+21%) from 2023
Expenses
Up$85,915
Up $18,316 (+27%) from 2023
Net Income
Up$80,120
Up $10,086 (+14%) from 2023
Most recent year
2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
The schwamb mill preservation trust inc exists for the preservation, maintenance, and enhancement of the old schwamb mill in arlington massachusetts.
Education/historic industrial preservation
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $601,030 | $596,042 | ▼ $4,988 |
| Investments in Publicly Traded Securities | $313,346 | $364,808 | ▲ $51,462 |
| Savings and Temporary Cash Investments | $74,761 | $85,766 | ▲ $11,005 |
| Cash and Non-Interest-Bearing Accounts | $16,646 | $39,288 | ▲ $22,642 |
| Inventories for Sale or Use | $15,000 | $15,000 | → $0 |
| Total Assets | $1,020,783 | $1,100,904 | ▲ $80,121 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $1,020,783 | $1,100,904 | ▲ $80,121 |
| Total Net Assets Fund Balance | $1,020,783 | $1,100,904 | ▲ $80,121 |
| Total Liabilities and Net Assets / Fund Balance | $1,020,783 | $1,100,904 | ▲ $80,121 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $346,042 | $218,453 | $564,495 |
| Land | $250,000 | - | $250,000 |
| Name | Title |
|---|---|
| Dermot Whittaker | President |
| JANET O'RIORDAN | Vice President |
| Doreen Stevens | Director |
| Ellen Cohen | Director |
| Grace Dingee | Director |
| Reed Snyder | Director |
| Robert B Tanner | Director |
| Rose M Austin | Director |
| Wayne Schwamb | Honorary Director |
| Ann M Leroyer | Clerk |
| Richard a Duffy | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $58,204 |
| Salaries, Compensation, and Employee Benefits | $27,711 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | - | $27,711 | - | $27,711 |
| Occupancy | - | $17,012 | - | $17,012 |
| Depreciation Depletion | - | $14,408 | - | $14,408 |
| Insurance | - | $2,621 | - | $2,621 |
| Fees for Services Accounting | - | $1,963 | - | $1,963 |
| Office Expenses | - | $681 | - | $681 |
| Advertising | - | $395 | - | $395 |
| Other Expenses | - | $125 | - | $125 |
| All Other Expenses | - | $60 | - | $60 |
| Total Functional Expenses | $0 | $85,915 | $0 | $85,915 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Form 990 is reviewed by the trustees and officers of the organization.”
“The organization makes its governing documents, conflicts of interest policy and financial statements available to the public upon request.”
“The organization makes it's form 990 available to the public upon request.”
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 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | EDUCATION/HISTORIC INDUSTRIAL PRESERVATION |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 395 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 395 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 60 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 60 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | RICHARD A DUFFY |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7816430554 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 17 MILL LANE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ARLINGTON |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 024764189 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 16646 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 39288 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 0 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CostOfGoodsSoldAmt | 0 | 635 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 55429 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 10190 |
| IRS990/CYOtherExpensesAmt | 0 | 58204 |
| IRS990/CYOtherRevenueAmt | 0 | 100416 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 80120 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 27711 |
| IRS990/CYTotalExpensesAmt | 0 | 85915 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 166035 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 14408 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 14408 |
| IRS990/Desc | 0 | APPRENTICESHIP PROGRAM IN WOODWORKING & CONSERVATION FRAMING EDUCATION IN HISTORIC INDUSTRIAL PRESERVATION AND THE CARE AND MAINTENANCE OF HISTORIC MACHINERY. MILL IS OPEN FREE TO THE PUBLIC WEEKDAYS AND BY APPOINTMENT. VISITATION BY INDIVIDUALS AND GROUPS EXCEEDS 5,000 ANNUALLY APPROXIMATELY 100 DEMONSTRATIONS OF OPERATIONAL MACHINERY PERFORMED; ONE APPRENTICE INSTRUCTOR. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 973 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FederatedCampaignsAmt | 0 | 55429 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 1963 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 1963 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | 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 | GRACE DINGEE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | WAYNE SCHWAMB |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DOREEN STEVENS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ELLEN COHEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | REED SNYDER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | ROBERT B TANNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | ANN M LEROYER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | ROSE M AUSTIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | RICHARD A DUFFY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | JANET O'RIORDAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | DERMOT WHITTAKER |
| 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 | HONORARY DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | CLERK |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | PRESIDENT |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1969 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedInd | 0 | 0 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 166670 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 17580 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 1170 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 2621 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 2621 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 15000 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 15000 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 10190 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 10190 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 313346 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 364808 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 218453 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 601030 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 596042 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 814495 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE SCHWAMB MILL PRESERVATION TRUST INC EXISTS FOR THE PRESERVATION, MAINTENANCE, AND ENHANCEMENT OF THE OLD SCHWAMB MILL IN ARLINGTON MASSACHUSETTS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1020783 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1100904 |
| IRS990/NetIncomeOrLossGrp/ExclusionAmt | 0 | 535 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 535 |
| IRS990/NetRentalIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 17580 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 17580 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1020783 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1100904 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 17012 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 17012 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 681 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 681 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | SOFTWARE & APPS |
| IRS990/OtherExpensesGrp/Desc | 1 | PRINTING & PUBLICATIONS |
| IRS990/OtherExpensesGrp/Desc | 2 | OUTSIDE SERVICES |
| IRS990/OtherExpensesGrp/Desc | 3 | MEMBERSHIPS & SUBSCRIPT |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 12079 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 7510 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 1350 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 125 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 12079 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 7510 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 1350 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 125 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | UNREALIZED GAIN (LOSS) |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | REALIZED CAPITAL GAIN |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 78851 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 3450 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 78851 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 3450 |
| IRS990/OtherRevenueTotalAmt | 0 | 82301 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 27711 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 27711 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | DERMONT WHITTAKER |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 153816 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 10934 |
| IRS990/PYOtherExpensesAmt | 0 | 38718 |
| IRS990/PYOtherRevenueAmt | 0 | -27117 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 70034 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 28881 |
| IRS990/PYTotalExpensesAmt | 0 | 67599 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 137633 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 80120 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 17580 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 74761 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 85766 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 51337 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 153816 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 95344 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 57879 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 46429 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 404805 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 13640 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 28379 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 20032 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 22608 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 9918 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 94577 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 1170 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 510 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1630 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 4261 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 2376 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 9947 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 13640 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 28379 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 20032 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 22608 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 9918 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 94577 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.18570 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.19660 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.81430 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.80340 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 414752 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 52507 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 154326 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 96974 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 62140 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 48805 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 414752 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 66147 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 182705 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 117006 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 84748 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 58723 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 509329 |
| 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 |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 346042 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 218453 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 564495 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 250000 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 250000 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 596042 |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | FORM 990 IS REVIEWED BY THE TRUSTEES AND OFFICERS OF THE ORGANIZATION. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICTS OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THE ORGANIZATION MAKES IT'S FORM 990 AVAILABLE TO THE PUBLIC UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI, SECTION B, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART VI, SECTION C, LINE 18 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART VI, SECTION C, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | 0 |
| IRS990/SignificantChangeInd | 0 | 0 |
| IRS990/SignificantNewProgramSrvcInd | 0 | 0 |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | MA |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | 0 |
| IRS990/SubjectToProxyTaxInd | 0 | 0 |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | 0 |
| IRS990/TaxablePartyNotificationInd | 0 | 0 |
| IRS990/TaxExemptBondsInd | 0 | 0 |
| IRS990/TerminateOperationsInd | 0 | 0 |
| IRS990/TotalAssetsBOYAmt | 0 | 1020783 |
| IRS990/TotalAssetsEOYAmt | 0 | 1100904 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 1020783 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 1100904 |
| IRS990/TotalCompGreaterThan150KInd | 0 | 0 |
| IRS990/TotalContributionsAmt | 0 | 55429 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 85915 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 85915 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 1020783 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 1100904 |
| IRS990/TotalOtherCompensationAmt | 0 | 0 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 973 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 535 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 110071 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 166035 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/TotalVolunteersCnt | 0 | 0 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 1020783 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 1100904 |
| IRS990/TotReportableCompRltdOrgAmt | 0 | 0 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990/TypeOfOrganizationTrustInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | 0 |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 37 NEILLIAN WAY |
| IRS990/USAddress/CityNm | 0 | BEDFORD |
| IRS990/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/USAddress/ZIPCd | 0 | 01730 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 7 |
| IRS990/VotingMembersIndependentCnt | 0 | 7 |
| IRS990/WebsiteAddressTxt | 0 | N/A |
| IRS990/WhistleblowerPolicyInd | 0 | 0 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | DERMONT WHITTAKER |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRESIDENT |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 7812752627 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-11-11 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | SCHWAMB MILL PRESERVATION TRUST |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | SCHW |
| ReturnHeader/Filer/EIN | 0 | 042488505 |
| ReturnHeader/Filer/PhoneNum | 0 | 7816430554 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 17 MILL LANE |
| ReturnHeader/Filer/USAddress/CityNm | 0 | ARLINGTON |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 024764189 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 1 |
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