Liabilities / Assets
30th percentile
Higher debt load relative to assets than 30% of similar nonprofits.
EIN 04-6003248 • 501(c)3 • Marblehead, MA
Profile
The marblehead museum's mission is to preserve, protect, and promote marblehead's past as a means of enriching the present. The museum shall collect, study, and conserve such historial materials as related to the town and of the persons whose lives have all contributed to the development of marblehead, and otherwise influenced its history. It shall conserve and preserve relics and property of the past, such as the jeremiah lee mansion and the civil war & grand army of the republic museum, and other property, both real and personal, as may be given, bequeathed, purchased, loaned to or otherwise acquired by the museum. The museum will use the collection for the education, enjoyment, and benefit of the general public. The museum is an educational resource for residents of marblehead,visitors and scholars from around the world.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
30th percentile
Higher debt load relative to assets than 30% of similar nonprofits.
Liabilities / Revenue
38th percentile
Higher debt load relative to revenue than 38% of similar nonprofits.
Net Margin
93rd percentile
Higher net margin than 93% of similar nonprofits.
Top Officer Pay
53rd percentile
Higher top officer pay than 53% of similar nonprofits.
Top officer pay equals 7.1% of source-year revenue.
Asset Growth
79th percentile
Faster asset growth than 79% of similar nonprofits.
Revenue Growth
55th percentile
Faster revenue growth than 55% of similar nonprofits.
Assets
Up$4,194,487
Up $710,367 (+20%) from 2023
Liabilities
Down$26,344
Down $10,311 (-28%) from 2023
Net Assets
Up$4,168,143
Up $720,678 (+21%) from 2023
Revenue
Up$926,858
Up $83,905 (+10.0%) from 2023
Expenses
Down$338,508
Down $33,437 (-9.0%) from 2023
Net Income
Up$588,350
Up $117,342 (+25%) from 2023
Most recent year
2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
The marblehead museum's preserve, protect, and promote marblehead's past as a means of enriching the present. The museum shall collect, study, and conserve such historical materials as relate to the town and of the persons whose lives have contributed to the development of marblehead, and otherwise influenced its history. It shall conserve and preserve relics and property of the past, such as the jeremiah lee mansion and the civil war & grand army of the republic museum, and other property, both real and personal, as may be given, bequeathed, purchased, loaned to or otherwise acquired by the museum. The museum will use the collection for the education, enjoyment, and benefit of the general public. The museum is an educational resource for residents of marblehead, visitors, and scholars from around the world.
The marblehead museum's mission is to preserve, protect, and promote marblehead's past as a means of enriching the present. The museum shall collect, study, and conserve such historical materials as related to the town and of the persons whose lives have contributed to the development of marblehead, and otherwise influenced its history. It shall conserve and preserve relics and property of the past, such as the jeremiah leee mansion and the civil was & grand army of the republic museum, and other property, both real and personal, as may be given, bequeathed, purchased, loaned to or otherwise acquired by the museum. The museum will use the collection for the education, enjoyment, and benefit of the general public. The museum is an educational resource for residents of marblehead, visitors, and scholars from around the world.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $1,619,822 | $2,169,631 | ▲ $549,809 |
| Investments in Publicly Traded Securities | $1,556,281 | $1,837,549 | ▲ $281,268 |
| Savings and Temporary Cash Investments | $254,168 | $108,862 | ▼ $145,306 |
| Cash and Non-Interest-Bearing Accounts | $26,947 | $60,409 | ▲ $33,462 |
| Inventories for Sale or Use | $17,907 | $9,031 | ▼ $8,876 |
| Prepaid Expenses and Deferred Charges | $8,995 | $9,005 | ▲ $10 |
| Total Assets | $3,484,120 | $4,194,487 | ▲ $710,367 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $28,022 | $13,844 | ▼ $14,178 |
| Deferred Revenue | $8,633 | $12,500 | ▲ $3,867 |
| Total Liabilities | $36,655 | $26,344 | ▼ $10,311 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $2,894,579 | $3,716,210 | ▲ $821,631 |
| Net Assets With Donor Restrictions | $552,886 | $451,933 | ▼ $100,953 |
| Total Net Assets Fund Balance | $3,447,465 | $4,168,143 | ▲ $720,678 |
| Total Liabilities and Net Assets / Fund Balance | $3,484,120 | $4,194,487 | ▲ $710,367 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Leasehold Improvements | $1,274,410 | $31,339 | $1,305,749 |
| Buildings | $828,506 | $356,396 | $1,184,902 |
| Land | $66,715 | - | $66,715 |
| Equipment | $0 | $10,757 | $10,757 |
| Other Land Buildings | $0 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $1,643,445 | - | ▲ $237,602 | $-43,498 | $1,837,549 |
| 2023 | $1,523,099 | - | ▲ $197,983 | $-77,637 | $1,643,445 |
| 2022 | $1,685,683 | - | ▼ $118,721 | $-43,863 | $1,523,099 |
| 2021 | $1,865,316 | - | ▲ $218,628 | $397,660 | $1,685,683 |
| 2020 | $1,731,315 | - | ▲ $128,644 | $-6,042 | $1,865,316 |
| Name | Title | Full / Part Time | Base | Total |
|---|---|---|---|---|
| Lauren Mccormack | Executive Director | FT | $65,458 | $65,458 |
| Name | Title |
|---|---|
| Maura K Phelan | Immediate Past President |
| Patty Pederson | President |
| Maeve Rice | Vice President |
| Andrew Peach | Director |
| Bonnie Buckley | Director |
| Harold Kokonos | Director |
| Karen Rosenberg | Director |
| Patti D Baker | Director |
| Kimberly Downing | Secretary/director |
| Patricia Lausier | Treasurer/director |
| Karl Smith | Treasurer (april On) |
| Line Item | Amount |
|---|---|
| Other Expenses | $175,696 |
| Salaries, Compensation, and Employee Benefits | $162,812 |
| Total Fundraising Expense | $27,597 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $73,732 | $58,985 | $14,747 | $147,464 |
| Insurance | $36,241 | $24,161 | - | $60,402 |
| Occupancy | $25,328 | $7,237 | $3,618 | $36,183 |
| Depreciation Depletion | $22,409 | $6,403 | $3,201 | $32,013 |
| Office Expenses | $12,414 | $3,547 | $1,773 | $17,734 |
| Payroll Taxes | $7,674 | $6,139 | $1,535 | $15,348 |
| Fees for Services Other | $4,998 | $4,998 | $2,499 | $12,495 |
| Other Expenses | $1,285 | $894 | $224 | $1,285 |
| Total Functional Expenses | $198,547 | $112,364 | $27,597 | $338,508 |
| Line Item | Amount |
|---|---|
| Fundraising Gross Income | $31,532 |
| Fundraising Direct Expenses | $19,305 |
| Professional Fundraising Fees | $0 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| Treasure Fundraiser | $18,999 | $18,999 | $13,340 | $5,659 |
| Garden Event | $9,263 | $9,263 | $5,294 | $3,969 |
| Total Events | $31,532 | $31,532 | $19,305 | $12,227 |
“The organization has dues paying members. This is the only class of membership and they have the power to elect the officers of the organization.”
“The organization's members have the power to vote on the new slate of officers elected at annual meeting.”
“The organization does not keep minutes of its committee meetings”
“The executive director and treasurer reviews a draft of the form 990 as prepared by independent tax professional and discuss any questions/issues with the tax professionals. Once the executive director and treasurer accepts the draft, the return is filed.”
“All board members are required to review the epolicy and sign a disclosure form annually. If a conflict arises during the year, they are required to disclose it immediately.”
“The executive director's salary is reviewed annually by executive board officers who also conduct the annual performance evaluation of the executive director.”
“The museum's governing documents, conflict of interest policy and financial statements are available upon request at the museum.”
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 | 1 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 28022 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 13844 |
| IRS990/AcctCompileOrReviewBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE MARBLEHEAD MUSEUM'S MISSION IS TO PRESERVE, PROTECT, AND PROMOTE MARBLEHEAD'S PAST AS A MEANS OF ENRICHING THE PRESENT. THE MUSEUM SHALL COLLECT, STUDY, AND CONSERVE SUCH HISTORICAL MATERIALS AS RELATED TO THE TOWN AND OF THE PERSONS WHOSE LIVES HAVE CONTRIBUTED TO THE DEVELOPMENT OF MARBLEHEAD, AND OTHERWISE INFLUENCED ITS HISTORY. IT SHALL CONSERVE AND PRESERVE RELICS AND PROPERTY OF THE PAST, SUCH AS THE JEREMIAH LEEE MANSION AND THE CIVIL WAS & GRAND ARMY OF THE REPUBLIC MUSEUM, AND OTHER PROPERTY, BOTH REAL AND PERSONAL, AS MAY BE GIVEN, BEQUEATHED, PURCHASED, LOANED TO OR OTHERWISE ACQUIRED BY THE MUSEUM. THE MUSEUM WILL USE THE COLLECTION FOR THE EDUCATION, ENJOYMENT, AND BENEFIT OF THE GENERAL PUBLIC. THE MUSEUM IS AN EDUCATIONAL RESOURCE FOR RESIDENTS OF MARBLEHEAD, VISITORS, AND SCHOLARS FROM AROUND THE WORLD. |
| IRS990/AllOtherContributionsAmt | 0 | 745268 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 0 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | LAUREN MCCORMACK |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7816311768 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 170 WASHINGTON STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | MARBLEHEAD |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 01945 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 26947 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 60409 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 1 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CostOfGoodsSoldAmt | 0 | 9417 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 770351 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 110201 |
| IRS990/CYOtherExpensesAmt | 0 | 175696 |
| IRS990/CYOtherRevenueAmt | 0 | 10091 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 36215 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 588350 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 162812 |
| IRS990/CYTotalExpensesAmt | 0 | 338508 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 27597 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 926858 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 8633 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 12500 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 3201 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 6403 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 22409 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 32013 |
| IRS990/Desc | 0 | THE MARBLEHEAD MUSEUM ACHIEVES ITS MISSION TO PRESERVE, PROTECT AND PROMOTE THE UNIQUE HISTORY OF MARBLEHEAD THROUGH A VARIETY OF PROGRAMS AND INITIATIVES FOR CHILDREN AND ADULTS. THE MUSEUM AND THE LEE MANSION ARE OPEN TUESDAY THROUGH SATURDAY FROM JUNE THROUGH OCTOBER. THE MUSEUM REMAINS OPEN YEAR ROUND, WHILE THE LEE MANSION IS SEASONAL. ADMISSION TO THE LEE MANSION IS $10 PER PERSON. APPROXIMATELY 6,000 PEOPLE VISIT THE MUSEUM ANNUALLY. THE MUSEUM DOES NOT CHARGE ADMISSION, AND THE CHANGING EXHIBIT AND THE FROST GALLERY ARE OPEN TO VISITORS. THE STAFF IS ALSO AVAILABLE TO HELP WITH RESEARCH QUESTIONS. THE MUSEUM'S THIRD PROPERTY, THE CIVIL WAR AND G.A.R. MUSEUM, IS OPEN ON SATURDAYS IN SPRING, SUMMER AND FALL, WITH NO ADMISSION CHARGE. CHILDREN'S PROGRAMMING INCLUDES AFTER SCHOOL WORKSHOPS, GUIDED TOURS AND ACTIVITIES AT THE LEE MANSION AND THE FROST GALLERY, STAFF VISITS TO CLASSROOMS AND INTERN PROJECTS FOR HIGH SCHOOL AND COLLEGE STUDENTS. ALL CHILDREN'S PROGRAMMING IS FREE. APPROXIMATELY 1,000 STUDENTS, FROM 3RD TO 8TH GRADES OF MARBLEHEAD PUBLIC SCHOOLS VISIT ANNUALLY. AN AVERAGE OF 4 TO 6 STUDENTS FROM LOCAL HIGH SCHOOLS AND COLLEGES WORK ONE ON ONE WITH STAFF THROUGHOUT THE YEAR AS INTERNS. PROGRAMMING FOR ADULTS FOCUSES ON THE SPRING AND FALL LECTURE SERIES, SPONSORED BY MARBLEHEAD HARBOR INVESTMENT COUNSEL, A TOTAL OF 10-12 LECTURES ARE OFFERED EACH YEAR. ALSO, WALKING TOURS OF HISTORIC MARBLEHEAD TAKE PLACE DURING THE SUMMER AND FALL, DAYTIME LECTURE SERIES, KNOWN AS BROWN BAG LUNCH, ARE OFFERED AT NO CHARGE. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 552886 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 451933 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 6 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 198547 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 2499 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 4998 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 4998 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 12495 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 37.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 2.00 |
| 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/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/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | LAUREN MCCORMACK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MAURA K PHELAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | BONNIE BUCKLEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | PATTI D BAKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | ANDREW PEACH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | KAREN ROSENBERG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | HAROLD KOKONOS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | PATTY PEDERSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | KIMBERLY DOWNING |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | PATRICIA LAUSIER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | KARL SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | MAEVE RICE |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 65458 |
| 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/ReportableCompFromOrgAmt | 11 | 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/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | EXECUTIVE DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | IMMEDIATE PAST PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | SECRETARY/DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TREASURER/DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | TREASURER (APRIL ON) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | VICE PRESIDENT |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1902 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedInd | 0 | 0 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 19305 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 31532 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 50277 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 121939 |
| IRS990/GrossReceiptsAmt | 0 | 1027242 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 7081 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 24161 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 36241 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 60402 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 17907 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 9031 |
| IRS990/InvestmentExpenseAmt | 0 | -700 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 59924 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 59924 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 1556281 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1837549 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 398492 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 1619822 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 2169631 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 2568123 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 71662 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembershipDuesAmt | 0 | 25083 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 0 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE MARBLEHEAD MUSEUM'S MISSION IS TO PRESERVE, PROTECT, AND PROMOTE MARBLEHEAD'S PAST AS A MEANS OF ENRICHING THE PRESENT. THE MUSEUM SHALL COLLECT, STUDY, AND CONSERVE SUCH HISTORIAL MATERIALS AS RELATED TO THE TOWN AND OF THE PERSONS WHOSE LIVES HAVE ALL CONTRIBUTED TO THE DEVELOPMENT OF MARBLEHEAD, AND OTHERWISE INFLUENCED ITS HISTORY. IT SHALL CONSERVE AND PRESERVE RELICS AND PROPERTY OF THE PAST, SUCH AS THE JEREMIAH LEE MANSION AND THE CIVIL WAR & GRAND ARMY OF THE REPUBLIC MUSEUM, AND OTHER PROPERTY, BOTH REAL AND PERSONAL, AS MAY BE GIVEN, BEQUEATHED, PURCHASED, LOANED TO OR OTHERWISE ACQUIRED BY THE MUSEUM. THE MUSEUM WILL USE THE COLLECTION FOR THE EDUCATION, ENJOYMENT, AND BENEFIT OF THE GENERAL PUBLIC. THE MUSEUM IS AN EDUCATIONAL RESOURCE FOR RESIDENTS OF MARBLEHEAD,VISITORS AND SCHOLARS FROM AROUND THE WORLD. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 3447465 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 4168143 |
| IRS990/NetGainOrLossInvestmentsGrp/RelatedOrExemptFuncIncomeAmt | 0 | 50277 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 50277 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 12227 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 12227 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | -2336 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | -2336 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 133028 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 2894579 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3716210 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 3618 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 7237 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 25328 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 36183 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 1773 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 3547 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 12414 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 17734 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROGRAM SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 1 | MUSEUM COLLECTION & EXH |
| IRS990/OtherExpensesGrp/Desc | 2 | PRINTING AND POSTAGE |
| IRS990/OtherExpensesGrp/Desc | 3 | BANK AND CREDIT CARD FE |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 224 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 894 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 9224 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 4124 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 1118 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 1285 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 9224 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 4124 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 2236 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 1285 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISC INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 200 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 200 |
| IRS990/OtherRevenueTotalAmt | 0 | 200 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 14747 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 58985 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 73732 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 147464 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 1535 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 6139 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 7674 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 15348 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 8995 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 9005 |
| IRS990/PrincipalOfficerNm | 0 | LAUREN MCCORMACK |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PROGRAMS |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | ADMISSIONS |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 24294 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 11921 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 24294 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 11921 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | THE MUSEUM HAS OVER 60,000 CATALOGUED OBJECTS, ARTIFACTS AND PERSONAL PAPERS IN ITS COLLECTION, MOST OF THE FURNITURE, PAINTINGS AND DECORATIVE ARTS ARE ON DISPLAY IN THE LEE MANSION. A PORTION OF THE MUSEUM'S COLLECTION IS AVAILABLE ONLINE THROUGH THE MUSEUM'S WEBSITE, MARBLEHEADMUSEUM.ORG. THE MUSEUM'S CURATOR WORKS WITH RESEARCHERS BOTH IN PERSON AND THROUGH EMAIL AND TELEPHONE REQUESTS. PURCHASES FOR THE MUSEUM COLLECTION ARE LIMITED. |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | THE MARBLEHEAD MUSEUM OFFERS CHANGING EXHIBITS, USUALLY TWO OR THREE EACH YEAR, IN THE MUSEUM'S CHANGING EXHIBIT GALLERY. IN 2022, THE MUSEUM INSTALLED AN EXHIBIT OF THE VICTORIAN PHOTOGRAPHY OF FRED LITCHMAN. OTHER PROGRAMS INCLUDE LECTURES AND WALKING TOURS. |
| IRS990/ProgSrvcAccomActyOtherGrp/ExpenseAmt | 0 | 0 |
| IRS990/ProgSrvcAccomActyOtherGrp/RevenueAmt | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 688862 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 82094 |
| IRS990/PYOtherExpensesAmt | 0 | 230043 |
| IRS990/PYOtherRevenueAmt | 0 | 38402 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 33595 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 471008 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 141902 |
| IRS990/PYTotalExpensesAmt | 0 | 371945 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 842953 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 588350 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 84356 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 254168 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 108862 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 781191 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 688862 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 600363 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 318337 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 108664 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 2497417 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 59924 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 53528 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 293536 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 195404 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 143136 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 745528 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 45996 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 43797 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 40354 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 103928 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 65679 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 299754 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 59924 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 53528 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 293536 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 195404 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 143136 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 745528 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.21040 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.24760 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.78960 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.75240 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 2797171 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 827187 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 732659 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 640717 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 422265 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 174343 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 2797171 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 887111 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 786187 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 934253 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 617669 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 317479 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 3542699 |
| 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/BoardDesignatedBalanceEOYPct | 0 | 0.75000 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 828506 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 356396 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 1184902 |
| IRS990ScheduleD/CollectionUsedPreservationInd | 0 | X |
| IRS990ScheduleD/CollectionUsedPubExhibitionInd | 0 | X |
| IRS990ScheduleD/CollUsedScholarlyRsrchInd | 0 | X |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 1643445 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 1837549 |
| IRS990ScheduleD/CYEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 237602 |
| IRS990ScheduleD/CYEndwmtFundGrp/OtherExpendituresAmt | 0 | -43498 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 1523099 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 1643445 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 197983 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/OtherExpendituresAmt | 0 | -77637 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 1685683 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 1523099 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | -118721 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/OtherExpendituresAmt | 0 | -43863 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/AdministrativeExpensesAmt | 0 | 601 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 1865316 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 1685683 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 218628 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/OtherExpendituresAmt | 0 | 397660 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/AdministrativeExpensesAmt | 0 | 685 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 1731315 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 1865316 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 128644 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/OtherExpendituresAmt | 0 | -6042 |
| IRS990ScheduleD/EndowmentsHeldRelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/EndowmentsHeldUnrelatedOrgInd | 0 | 0 |
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