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- United States. Congress. House. Committee on Un-American Activities17
- United States. Congress. Senate. Committee on the Judiciary. Subcommittee to Investigate the Administration of the Internal Security Act and Other Internal Security Laws6
- New York (State). Legislature. Joint Legislative Committee on the State Education System4
- Naison, Mark D., 1946-3
- New York (State). Legislature. Joint Committee on the State Education System3
- Pfannestiel, Todd J.3
- United States. Congress. House. Committee on Education and Labor3
- Cooney, Terry A.2
- Schaffer, Louis2
- Walter L. Pforzheimer Intelligence Collection (Beinecke Rare Book and Manuscript Library)2
- Amter, I. (Israel), 1881-19541
- Begun, Isidore1
- Bittelman, Alex, 1890-19821
- Brosnan, John F.1
- Chamberlain, Lawrence H. (Lawrence Henry), 1906-1
- Chamberlain, Lawrence H. (Lawrence Henry), 1906-19891
- Committee for Defense of Public Education1
- Communist Party of the United States of America1
- Communist Party of the United States of America (N.Y.). Convention (10th : 1938)1
- Communist Party of the United States of America (N.Y.). State Committee1