| TITLE |
| Lee Baxandall (Brecht, Marxist aesthetics) |
|
Cedric Belfrage |
|
Sally Belfrage |
| Daniel Bell |
|
Helena Born |
|
Sam Brandon |
|
Harold Cruse |
|
Cuban letters |
| Olive Tilford Dargan |
| *Raya Dunayevskaya |
| Ziad Abu Eain |
| Erwin Edelman |
|
Frederic Ewen |
| Ralph Fasanella |
| Sol Feinstone, collector |
| David Fender |
| Elinor Ferry |
| Nelson Frank |
|
Mary E. Gawthorpe (British suffragette) |
| Jay Gorney |
| Leo Isaacson |
| Glen Jenkins |
|
Jay and Si-Lan Chen Leyda |
|
Charles Madison |
| Harry Magdoff |
|
Heinz Norden |
| William Roe Polk |
| William A. Reuben |
| Morris U. Schappes |
| Simon Schwartz |
| Oscar Shaftel |
| Chalmers, K. Stewart |
| Harry Turner |
| Girolamo Valenti |
| Stan Weir |
| Isadore Wisotsky |
| Robert Wohlforth |
| Sol Yurick. |
| TITLE |
|
American Committee for Cultural Freedom (permission) |
| Camp Midvale/Nature Friends of America |
| Conference on Democracy in Education |
| Committee on Democratic Election Laws |
|
*Greenwich House |
| Kalmuck Resettlement Committee |
| *Left in Britain |
|
Newsmen's Commission to Investigate the Murder of George Polk |
| *Oneida Community |
|
Oral History of the American Left project files |
| PM FBI files |
| Revolutionary Workers League |
| Russian Artillery Commission |
| *U.S. Military Intelligence Reports: Surveillance of Radicals, 1917-1941 |
| University Place Bookshop |
| Workers Cooperative Colony (Bronx, NY). |
| TITLE |
| Harold I. Cammer |
| National Lawyers Guild |
| *Meiklejohn Civil Liberties |
| Rabinowitz, Boudin, Standard, Krinsky (attorneys) |
| Abraham Unger. |