This collection contains the minutes, correspondence and financial records of the I.L. Peretz Yiddish Writers’ Union from its founding in 1915 until 1973. Among the correspondence is a fair amount concerning the Fund for Jewish Refugee Writers, unions and union grievances, requests for aid from Jewish writers and activists in New York and abroad, and labor disputes and strikes.

Morris U. Schappes, self-taught historian of American Jewish History, author, teacher, and editor of Jewish Currents for 40 years, is also known as a victim of hearings conducted in 1941 by the Rapp-Coudert Committee, a New York legislative committee investigating Communist activities in the state educational system.

This collection is comprised of materials related to the Rapp-Coudert proceedings and Schappes' subsequent imprisonment, and of materials generated in the following decades. Topics represented include academic freedom, Communism in the U.S., the roles of Jews in U.S. history, and Emma Lazarus. The formats primarily present in the collection are research notes, manuscripts, clippings, and correspondence.

This collection contains correspondence between Abraham Cahan and many important literary and political figures, as well as Yiddish manuscripts sent to Cahan for consideration in the Forward and notes and drafts of Cahan’s own writings. There are also several articles written about Cahan, before and after his death. These materials serve to illustrate both Cahan’s importance in the literary and publishing fields as well as his involvement in the American socialist and labor movements.

This collection contains correspondence between Chaim Zhitlowsky and many important political figures and organizations, as well as manuscripts and other writings, some written by Zhitlowsky and some written by others. There are also notes and other materials from speeches and lectures that Zhitlowsky gave, financial documents, articles written about Zhitlowsky, newspaper clippings of articles by Zhitlowsky, materials from celebrations held in Zhitlowsky’s honor, photographs, excerpts from his works, and various other assorted items. These materials serve to illustrate both Zhitlowsky’s importance in the Yiddish and Russian literary field and his deep involvement in the American and Russian-Jewish Socialist, Territorialist and Diaspora Nationalism movements.

This collection contains correspondence between Mendel Osherowitch and many important literary and political figures, as well as Yiddish manuscripts by Osherowitch, clippings, photos, and obituaries and letters written to his family after his death. These materials illustrate Osherowitch’s importance in the Yiddish literary field as well as his role in various Jewish organizations.