- Miklós Hollós1
- Molnár, Erik1
- Muran, J. B.1
- Murray, Michael1
- National Committee of Americans of Polish Descent1
- Obertyńska, Beata1
- Okulicki, Leopold1
- Open Society Archives at Central European University1
- Pavlov, A.1
- Pius XII1
- Pol, Wincenty1
- Pyriev, Ivan1
- Rahmanov, Leonid Nikolaevič1
- Reichart, Rufus1
- Room, Abram1
- Rosinger, Lawrence K.1
- Royal Institute of International Affairs1
- Rákosi, Mátyás1
- Samizdat Archives of Radio Free Europe1
- Schweitzer, Joseph1