- Capra, Frank11
- Radio Free Europe/Radio Liberty, Inc - Research Institute8
- Pallai, Péter5
- Bortstieber, Gertrud4
- Dallin, David J.4
- Hanák, Péter3
- Samizdat Archives3
- Duranty, Walter2
- Garner, Frank Harold2
- Gunther, John2
- Ivens, Joris2
- Koestler, Arthur2
- Nóvé, Béla2
- Royal Institute of International Affairs2
- United States. Department of State2
- American Federation of Labor1
- Anderson, Herbert Foster1
- Anderson, Virgil A.1
- Ascoli, Max1
- Baker, Albert E.1