- United States. Congress. House. Committee on Un-American Activities3
- Foster, William Z.2
- Arévalo, Juan José1
- Avakian, Bob1
- Chambers, Whittaker1
- Delaney, Robert Finley1
- Fast, Howard1
- Guttmann, Allen1
- Hicks, Granville1
- Klehr, Harvey1
- Meyer, Hershel D.1
- Overstreet, H. A.1
- Sakmyster, Thomas L.1
- Shils, Edward Albert1
- United States. Congress. Senate. Committee on the Judiciary1