Addie Wolff Kahn was the widow of Otto H. Kahn [d. 29 March 1934], a New York banker, art collector, and Chairman of the board of the Metropolitan Opera Association. She gave several works of art from their private collection to the NGA. The daughter of Abraham Wolff of Morristown, New Jersey and New York, a partner in the banking firm of Kuhn, Loeb & Co., Addie Wolff received much of her schooling abroad. In 1896, she married Otto Hermann Kahn, who a year later joined the Kuhn-Loeb firm where he enjoyed a very successful career. Mrs. Kahn shared her husband's enthusiasm and patronage of the arts. She served as a director of the Metropolitan Opera Association and as president and director of the Manhattan School of Music. Mrs. Kahn was also vice president of the Rachmaninoff Memorial Fund and president of the National Music League, a patroness of the Queens Symphony Society, a member of the old Society of the Friends of Music, a contributor to the Town Hall endowment Fund, a lay member of the Grand Central Art Galleries and a member of the honorary committee of "Masterpieces of Art," exhibited at the New York World's Fair. Other philanthropic and health organizations with which Addie Kahn was involved included the New York Society for the Prevention of Cruelty to Children, the Women's Trade Union League, and the Country Home for Convalescent Babies at Sea Cliff, Long Island, and the Huntington, Long Island Hospital. She was also active in the Federation of Women's Clubs, and served on the executive committee of the New York Women's Division of the Committee for the Marshall Plan to Aid European Recovery. After her husband's death in 1934, the Kahn house at Fifth Avenue and Ninety-first Street was sold for use by the Academy of the Sacred Heart. Mrs. Kahn then lived at 25 Sutton Place. She was survived at her death by two sons and two daughters--Gilbert Wolff Kahn, Roger Wolff Kahn, Mrs. John Barry Ryan Jr., Mrs. (Maj. Gen.) J.C.O. Marriott--and seven grandchildren.
International Studio (February 1925): 279 ff.
[Otto Kahn obituary]. Art Digest (15 April 1934): 7.
"Mrs. O.H. Kahn Dies; Widow of Banker" [obituary]. The New York Times (16 May 1949: 21:1).