2026-09-23T12:06:38-07:00 2025-12-31 113518786 Baldessari & Coster LLP 84 Covert Ave Stewart Manor NY 11530 990 2025-01-01 116035631 EAST HAMPTON HISTORICAL SOCIETY INC EAST 6313246850 151 MAIN STREET EAST HAMPTON NY 11937 ANNE SHEAN Treasurer 2026-09-23 true Albert Coster CPA P00296210 5163262582 2025 151 MAIN STREET EAST HAMPTON NY 11937 9670914 false X WWW.EASTHAMPTONHISTORY.ORG X 1921 NY THE EAST HAMPTON HISTORICAL SOCIETY SERVES THE RESIDENTS AND VISITORS OF EAST HAMPTON BY COLLECTING, PRESERVING, PRESENTING, AND INTERPRETING THE MATERIAL, CULTURAL, AND ECONOMIC HERITAGE OF THE TOWN AND ITS SURROUNDINGS. 23 23 13 23 0 878610 7039321 42294 43935 55545 1519719 26610 36174 1003059 8639149 0 0 441440 446127 0 100132 383686 531482 825126 977609 177933 7661540 4470213 11177030 104073 205318 4366140 10971712 THE EAST HAMPTON HISTORICAL SOCIETY SERVES THE RESIDENTS AND VISITORS OF EAST HAMPTON BY COLLECTING, PRESERVING, PRESENTING, AND INTERPRETING THE MATERIAL, CULTURAL, AND ECONOMIC HERITAGE OF THE TOWN AND ITS SURROUNDINGS. false false 553685 TO DISSEMINATE HISTORICAL KNOWLEDGE THROUGH MUSEUM EXHIBITIONS, TO COLLECT AND PRESERVE HISTORICAL STRUCTURES, ARTIFACTS OF HISTORICAL INTEREST AND WORKS OF ART RELATED TO LONG ISLAND IN GENERAL AND THE TOWN OF EAST HAMPTON IN PARTICULAR. 158999 TO DISSEMINATE HISTORICAL KNOWLEDGE THROUGH VARIOUS EDUCATIONAL ACTIVITIES. 712684 true true false false false false true true true true true false false false false false true false false false false false false false true false false false false false false false false false false false false false true true false false false false false false false true 9 0 true 13 true false false false false false false false 0 false false false false false false false X 23 23 false false false false false false false true true false false true true true true true false true true false NY X STEVE LONG 6313246850 151 MAIN STREET EAST HAMPTON NY 11937 X STEPHEN LONG EXECUTIVE DIRECTOR 40.00 0.00 134160 0 0 LINDA WILLETT Trustee 0.00 0.00 X 0 0 0 KAY ALLAIRE Trustee 1.00 0.00 X 0 0 0 AMY TARR Trustee 1.00 0.00 X 0 0 0 JAMES WILLIAM BLAUVELT Trustee 1.00 0.00 X 0 0 0 MARIAH WHITMORE Trustee 1.00 0.00 X 0 0 0 CAROLYN BRODY Trustee 1.00 0.00 X 0 0 0 ANDREW A DAVIS Vice President 1.00 0.00 X X 0 0 0 DEBRA DRUKER President 2.00 0.00 X X 0 0 0 HOLLIS FORBES Trustee 1.00 0.00 X 0 0 0 DORIAN FUHRMAN Trustee 1.00 0.00 X 0 0 0 PAIGE DALY Trustee 1.00 0.00 X 0 0 0 SANDRA MAYZAW LWIN Trustee 1.00 0.00 X 0 0 0 RAY HARDEN Trustee 2.00 0.00 X 0 0 0 MICHAEL CLIFFORD Trustee 1.00 0.00 X 0 0 0 DALE ELLEN LEFF Trustee 1.00 0.00 X 0 0 0 LEAH LEBEC Trustee 1.00 0.00 X 0 0 0 SARAH WETENHALL Trustee 1.00 0.00 X 0 0 0 LYSBETH MARIGOLD Secretary 1.00 0.00 X X 0 0 0 JACKIE MITCHELL Trustee 1.00 0.00 X 0 0 0 FRANK NEWBOLD Trustee 2.00 0.00 X 0 0 0 ANNE SHEAN Treasurer 2.00 0.00 X X 0 0 0 BRUCE SISKA Trustee 1.00 0.00 X 0 0 0 NEIDE VALEIRA Trustee 1.00 0.00 X 0 0 0 134160 1 false false false BEN KRUPINSKI BUILDER LLC 99 NEWTON LANE EAST HAMPTON NY 11937 CONSTRUCTION/PROJ MGMNT 548830 1 442700 110500 6486121 5531970 7039321 ADMISSION 611710 42876 42876 MUSEUM GIFT SHOP 453220 1059 1059 43935 65975 65975 0 0 40700 40700 40700 40700 2246791 793047 1453744 1453744 1453744 234192 442700 238718 -4526 0 0 0 8639149 1604354 0 0 0 0 134160 42816 49324 42020 0 247838 239862 7976 0 30195 22344 4529 3322 33934 25112 5089 3733 0 5321 5321 44740 44740 0 0 6193 6193 17547 16800 747 0 6008 2103 3905 0 0 80890 80890 1874 1874 0 0 2054 2054 0 177624 167823 9801 61562 56766 4496 300 MARKETING, PRINTING & POSTAGE 60104 15026 45078 MOVING AND STORAGE 40103 40103 TELECOMMUNICATIONS 11207 7397 897 2913 BANK AND PROCESSING FEES 6321 3555 2766 9934 8794 1140 977609 712684 164793 100132 344580 708647 0 0 7352 4109 0 0 0 0 8096 9365 7946521 1199935 1242967 6746586 2861668 3702773 0 0 5550 5550 0 4470213 11177030 94646 199391 6000 2500 3427 3427 104073 205318 X 1440847 7150143 2925293 3821569 4366140 10971712 4470213 11177030 7661540 -1055968 X false true X true false X 203889 792410 954287 878610 1507351 4336547 0 0 203889 792410 954287 878610 1507351 4336547 0 4336547 36534 54807 70421 72582 106675 341019 0 0 4677566 0.92710 0.92110 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED X 1 1 1 false false X X X X false false true X 2925293 1198095 385273 687098 3821563 2779721 220426 172640 247494 2925293 2150716 307438 321567 2779721 2620849 10261 -446095 34299 2150716 2283951 453698 116800 2620849 0.15700 0.84300 false false false 11000 11000 6785421 1059244 5726177 70576 70576 1079524 70115 1009409 6746586 7576988 -1055968 -1055968 8632956 6193 6193 8639149 971416 971416 6193 6193 977609 Part II, Line 9: Organization Reporting of conservation easements. NEITHER REVENUE NOR CAPITALIZATION OF THE EASEMENT WAS RECORDED SINCE NO ESTIMATION OF FAIR VALUE WAS AVAILABLE. Part III, Line 1a: If organization elected under SFAS 116 to not report are, historical treasures, o AS PERMITTED UNDER FASB ASC 958-360-25-3, HISTORICAL OBJECTS PURCHASED OR DONATED FOR PUBLIC EXHIBITION, OR RESEARCH IN FURTHERENCE OF PUBLIC SERVICE ARE NOT INCLUDED AS ASSETS ON THE BALANCE SHEET. UNDER FASB ASC 958-605-25-19, THE VALUE OF OBJECTS ACQUIRED BY GIFTS IS NOT REPORTED AS A CONTRIBUTION AT THE TIME OF THE GIFT WHEN THEY MEET ALL THREE OF THE CRITERIA IN THE DEFINITION OF A COLLECTION. Part III, Line 4: Description of organization's collections and how it furthers its purpose. THE SOCIETY HOLDS APPROXIMATELY 10,000 DECORATIVE ARTS, PAINTING, PRINTS, TOOLS, PREHISTORIC ARTIFACTS, TRANSPORTATION ITEMS, PHOTOGRAPHS, BOOKS, MANUSCRIPTS, VIDEOS, AND OTHER SUCH MATERIALS THAT ARE PRESERVED, EXHIBITED, STORED AND AVAILABLE TO RESEARCHERS, COMMUNITY MEMBERS AND VISITORS WHEN NEEDED. THE SOCIETY FOCUSES ON THE LOCAL HISTORY OF EAST HAMPTON TOWN AND THE BROADER SCOPE OF THE EAST END OF LOND ISLAND. THE COLLECTIONS ARE DISPLAYED IN TWO HISTORICAL HOUSES, A GALLERY, THE TOWN MARINE MUSEUM, SEVERAL HISTORICAL BARNS AND FARM BUILDINGS AS WELL AS TWO EARLY SCHOOL HOUSES. Part IV, Line 2b: Explanation of escrow account liability THE SOCIETY HOLD FUNDS, AT THE DONORS REQUEST, WHICH BENEFIT THE GARDEN PROJECT AT THE MORAN STUDIO. Part V, Line 4: Intended uses of the endowment fund. TO SUPPORT THE OPERATION OF THE SOCIETY IN FURTHERENCE OF ITS PUBLIC SERVICES. X X X X false ANTIQUE SHOW 267006 205000 62006 9835 25037 13159 HOUSE AND GARDEN 185125 140000 45125 2000 21716 18363 3 224761 97700 127061 138086 419 10103 676892 442700 234192 149921 47172 41625 238718 -4526 BEN KRUPSKI BUILDER LLC TRUSTEE OWNS 50% 548830 CONSTRUCTION MANAGEMENT false X 1 585007 FMV X 1 4946963 FMV false false false Form 990, Part VI, Section B, Line 11b TREASURER AND MEMBERS OF THE AUDIT COMMITTEE REVIEW THE 990 FORM. SUBSEQUENTLY, AUDIT COMMITTEE CIRCULATES A COPY TO ALL MEMBERS OF THE BOARD OF TRUSTEES AND RECOMMENDS THEY APPROVE IT. Form 990, Part VI, Section B, Line 12c ALL BOARD MEMBERS ARE REQUIRED TO ANNUALLY DISCLOSE ANY POTENTIAL CONFLICTS OF INTEREST AT A BOARD MEETING. Form 990, Part VI, Section B, Line 15a AN INDEPENDENT BOARD DELIBERATES THE COMPENSATION PACKAGE FOR THE EXECUTIVE DIRECTOR. THE FINAL OUTCOME OF THE DELIBERATION IS DOCUMENTED IN THE MINUTES. Form 990, Part VI, Section C, Line 19 THE DOCUMENTS ARE AVAILABLE UPON REQUEST.