- Brooks, Jeffrey1
- Bukharin, Nikolai Ivanovich1
- Bulgarian Unit1
- Bíró, András1
- Communist International (Comintern)1
- Communist Party of the United States of America1
- Czechoslovak Unit1
- Czudnowski, Moshe M.1
- Dikötter, Frank1
- Domaniczky, Endre1
- Duan, Jinchuan1
- Dziewanowski, M. K.1
- Farr, Sharon1
- Fedenko, Panas1
- Fejtő, Ferenc1
- Fic, Victor M.1
- Glazov, Yuri1
- Goutos, Konstantinos1
- Gubcsi, Lajos1
- Gábor, Róbert1