[3] Proletpen predated the John Reed Clubs, a grouping of American English-language progressive writers, by a month.
[4] Proletpen poets included Aaron Kurtz, Yuri Suhl, Martin Birnboim, Yosl Greenshpan, L. Miller, David Seltzer, Leyb Dinski, Ber Green (A.
Prose writers associated with Proletpen included Leon Yurman, Chaver Paver, L. Chanukoff, Leib Sobrin, Chaim Margoles-Davidson, David Kasher and S.
[2] Pomerantz spent 1933-1935 in Kyiv, and whilst in the Soviet Union he wrote a thesis in literary history on the Proletpen movement (Proletpén.
Etyudn un materyaln tsu der geshikhte fun dem kamf far proletarisher literatur in Amerike).