- Hubbard, Leonard E.1
- Ibárruri, Dolores1
- Ivanov, Aleksandr1
- Kemény, István1
- Lenin, Vladimir Ilʹich1
- Littlepage, John D.1
- Ludecke, Kurt Georg Wilhelm1
- Magos-Gimes, Judit1
- Open Society Archives at Central European University1
- Radio Free Europe/Radio Liberty, Inc - Research Institute1
- Roosevelt, Franklin D.1
- Roshal, Grigory1
- Samizdat Archives of Radio Free Europe1
- Schuschnigg, Kurt1
- Snow, Edgar1
- Stan, Radu1
- Szabó, Miklós1
- Varga, László1
- Yutkevich, Sergei1