- Albion, Mark S.1
- Aleksandrov, Grigori1
- Aroneanu, Eugène1
- Balkan Section1
- Balogh, Eva S.1
- Bielatowicz, Jan2
- Binkley, Wilfred E.1
- Bocheński, Aleksander1
- Bortstieber, Gertrud8
- Braun, Vladimir1
- British Broadcasting Corporation, Written Archive Centre1
- Bujnowski, Józef1
- Bulla, Béla1
- Bullitt, William C.1
- Bączkowski, Włodzimierz2
- Carr, Edward Hallett1
- Communist International (Comintern)1
- Dallin, David J.2
- Davis, Kenneth S.1
- Donskoy, Mark1