David’s comment: There are about 16 Hamilton Fish’s who represented New York in Congress. This is the one who served between the world wars and was a noted isolationist.
Representative | Republican | 
FISH, HAMILTON, (son of Hamilton Fish, grandson of Hamilton Fish, father of Hamilton Fish, Jr.), A Representative from New York; born in Garrison, Putnam County, N.Y., December 7, 1888; attended St. Marks School; was graduated from Harvard University in 1910; elected as a Progressive to the New York State assembly, 1914-1916; commissioned on July 15, 1917, captain of Company K, Fifteenth New York National Guard, which subsequently became the Three Hundred and Sixty-ninth Infantry; was discharged as a major on May 14, 1919; decorated with the Croix de Guerre and the American Silver Star and also cited in War Department general orders; colonel in the Officers’ Reserve Corps; delegate, Republican National Convention, 1928; elected as a Republican to the Sixty-sixth Congress to fill the vacancy caused by the resignation of Edmund Platt; reelected to the Sixty-seventh and to the eleven succeeding Congresses and served from November 2, 1920, to January 3, 1945; unsuccessful candidate for reelection in 1944 to the Seventy-ninth Congress; author; was a resident of Cold Spring, N.Y., until his death there on January 18, 1991; interment in Cemetery of Saint Philip’s Church in the Highlands, Garrison, N.Y.- Hamilton Fish on Wikipedia