- Baker, Nina Brown1
- Balkan Section1
- Balogh, Eva S.1
- Beliaev, V.1
- Bereczky, Albert1
- Bortstieber, Gertrud8
- British Broadcasting Corporation, Written Archive Centre1
- Bykov, N.1
- Capra, Frank4
- Cianfarra, Camille Maximilian1
- Communist International (Comintern)1
- Czechoslovak Republic. Ministerstvo zahraničních věcí1
- Czereśniewski, Wawrzyniec1
- Dallin, David J.1
- Davies, Joseph Edward1
- Eppstein, John1
- Fredro, Aleksander1
- Geréb, Anna2
- Great Britain, Foreign and Commonwealth Office1
- Gábor Magos2