This list includes letters both to and from the person named. Not all correspondence with those listed is noted here.

Clark, Tom	1947, October 7
Dehorn, O.J.	1948, May 24
Eastman, Max	1948, October 4
Judd, Walter	1948, May 13
Kohlberg, Alfred	1950, May 5
	1951, June 27
	1951, June 28
Lamont, Corliss	1938, March 3
Mandel, Ben	1938, June 10
Meany, George	1953, February 12
	1953, November 6
	1955, July 15
	1959, July 2
Mikolajcyk, Stanislaw	1948, January
Novack, George	1948, October 4
Sinclair, Upton	1951, March 8
Swim, Allan L.	1950, May 3
Thomas, Norman	1938, October 19
	1947, August 12
	1955, April 15
	1959, June 23
Wolfe, Bertram D.	1953, August 22
	1969, August 4