- Trotsky, Leon, 1879-1940 (32)
- Breitman, George, 1916-1984 (3)
- Novack, George Edward (3)
- Allen, Naomi (2)
- Eastman, Max, 1883-1969 (2)
- Hansen, Joseph (2)
- Lenin, Vladimir Ilʹich, 1870-1924 (2)
- Block, Russell (1)
- Bostock, Anya (1)
- Campbell, Malcolm (1)
- Dewey, John, 1859-1952 (1)
- Lovell, Sarah (1)
- Meijer, Jan Marinus (1)
- Mutnick, Barbara (1)
- Salner, David (1)
- Saunders, George, 1936- (1)
- Scott, Bev (1)
- Siegel, Paul N. (1)
- Steffens, Lincoln, 1866-1936 (1)
- Weissman, George, 1918- (1)
- Williams, Duncan, 1949- (1)
- Wright, John G. (John George) (1)