2026-08-11T15:40:38-04:00 2025-09-30 042666565 John M Monticone CPA 5 High St Medford MA 02155 990 2024-10-01 042299931 THE GIBSON SOCIETY INC % JOHN H MANGAN GIBS 6172676338 137 BEACON STREET Boston MA 02116 JOHN H MANGAN TREASURER 6172676338 2026-08-15 true true JOHN M MONTICONE CPA P01257043 7813950024 2026-08-11 X 2024 2025-03-06 01:10:19Z THE GIBSON HOUSE MUSEUM JOHN H MANGAN 137 BEACON STREET Boston MA 02116 257504 false X www.thegibsonhouse.org X 1936 MA The mission of The Gibson House Museum is to serve as the primary resource for understanding and interpreting life in Bostons Back Bay. The museum accomplishes this by preserving the row house and its collections; exhibiting and interpreting the house... (continued Schedule O) 15 15 15 30 0 0 231071 149520 39783 50362 22554 35437 8398 15122 301806 250441 0 0 98295 113528 0 6880 229193 138756 327488 252284 -25682 -1843 1323613 1372696 0 1323613 1372696 X The mission of The Gibson House Museum is to serve as the primary resource for understanding and interpreting life in Bostons Back Bay. The museum accomplishes this by preserving the row house and its collections; exhibiting and interpreting the house... (continued Schedule O) false false 219789 50362 Preservation and restoration of the interior and exterior of the Gibson House as well as educating the public on victorian urban life through guide tours. 219789 true true false false false false false true false true true true false false false false false false false false false false false false true false false false false false false false false false false false false false false false false false false false false false false false true 0 0 true 15 true false false false false false true true false false false false false false false false X 15 15 false false false false true false false true true false false true true true true true true true false false MA X X THE ORGANIZATION 6172676338 137 BEACON STREET Boston MA 02116 X JACQUELINE BLOMBACH DIRECTOR 0.50 0.00 X 0 0 0 LYNN SMILEDGE DIRECTOR 0.50 0.00 X 0 0 0 FRANCES DUFFLY DIRECTOR 0.50 0.00 X 0 0 0 JOHN S GLASSMAN DIRECTOR 0.50 0.00 X 0 0 0 DAVID R HOCKER DIRECTOR 0.50 0.00 X 0 0 0 CARTER JACKSON DIRECTOR 0.50 0.00 X 0 0 0 LORIE C KOMLYN DIRECTOR 0.50 0.00 X 0 0 0 JESSE K ADAMS-DOOLITTLE DIRECTOR 0.50 0.00 X 0 0 0 RACHEL P ERICKSEN DIRECTOR 0.50 0.00 X 0 0 0 KERRY MILES DIRECTOR 0.50 0.00 X 0 0 0 KATHERINE WINTER DIRECTOR 0.50 0.00 X 0 0 0 SAMUEL H DUNCAN PRESIDENT 1.00 0.00 X X 0 0 0 LAUREN THOMAS VICE PRESIDENT 1.00 0.00 X X 0 0 0 SUSAN ASHBROOK SECRETARY 0.50 0.00 X X 0 0 0 JOHN H MANGAN TREASURER 4.00 0.00 X X 0 0 0 0 0 0 0 false false false 4069 29321 16950 99180 149520 AdmissionsTours 900099 50362 50362 50362 35437 35437 3555 3555 3555 3555 18630 29321 7063 11567 11567 250441 50362 0 50559 105128 80164 18578 6386 8400 6469 1437 494 2000 2000 2013 2013 1936 1936 2684 2559 125 34963 34963 8944 8014 930 Program Expenses-Restoration 49576 49576 Repairs and Maintenance 23005 23005 Utilities 4387 4387 Supplies 8071 7478 593 1177 1161 16 252284 219789 25615 6880 38082 12435 399 838997 398011 475949 440986 809582 918876 1323613 1372696 0 0 X 1041105 1101450 282508 271246 1323613 1372696 1323613 1372696 -1843 50926 0 X false false false X 166290 103622 126933 231071 149520 777436 166290 103622 126933 231071 149520 777436 108306 669130 83527 51570 20538 22554 35437 213626 6117 605 160 1338 8220 999282 0.66960 0.68350 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED X X X 161271 35000 11055 2836 204490 93795 44938 23053 515 161271 61373 25000 7422 93795 12812 50144 1583 61373 12812 12812 1.00000 false false 814693 373707 440986 24304 24304 440986 Other Marketable Securities 918876 F 918876 Part III, Line 4-Description organizations collections Preservation of the Gibson House and its artifacts as well as educating the public on victorian urban life. Part V, Line 4-Intended uses of endowment funds Curator Endowment: It is funded by donations specifically raised to secure the long-term compensation of the curator. This endowment ensures the continuity and stability of the curator role, underscoring the museums commitment to curatorial excellence. Benefit Tea 45612 29321 16291 6800 Raffle 2339 2339 263 1 47951 29321 18630 7063 7063 11567 Members or stockholder classes and rights Part VI line 6 The Organization is governed by the Board of Directors. Form 990 governing body review Part VI line 11 The annual form 990 is prepared by the independent certified public accountant, reviewed by the Finance Committee and signed by the President. Conflict of interest policy compliance Part VI line 12c The organization has established a policy that requires each new key employee, officer or director to review a copy of the Policy on Conflicts of Interest and Disclosure of Certain Interests and to acknowledge in writing that he or she has done so. Additionally, each key employee, officer or director, annually complete a disclusure form identifying any relationships, positions or cirsumstances in which the employee is involved that he or she believes could contribute to a conflict of interest arising. CEO executive director top management comp Part VI line 15a The salary of the Museum Administrator, who fulfills many duties akin to those of an Executive Director, is reviewed and approved by the Board of Directors during the annual budget process. Governing documents etc available to public Part VI line 19 The Organization makes its governing documents and conflict of interest policy available to the public upon request. Part III response or note to any other line in Part III (continued from Form 990, page 2, Part III, Line 1)...in its urban context to provide education and enjoyment to the broadest possible audience; promoting knowledge of Back Bay history and material culture.