Abraham J. Isserman was an American lawyer and activist who defended Gerhart Eisler in 1947 and CPUSA leaders in the Foley Square trial (1949): he was found in contempt of court by Judge Harold Medina, sentenced to four months in jail (1952), and disbarred.

Maurice Isserman, formerly William R. Kenan and the James L. Ferguson chairs, is a Professor of History at Hamilton College. He has written about the Communist Party USA during the Popular Front period of the 1930s and 1940s, as well as the emergence of the New Left and the 1960s. He co-authored a biography with Dorothy Ray Healey and authored a biography of Michael Harrington, both of whom were co-founders of Democratic Socialists of America. He has contributed editorials and book reviews to The New York Times, The Boston Globe, Newsday, the Los Angeles Times, The Nation, and The American Alpine Review. In 2008, he began writing about mountaineering.