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.

This collection contains the personal and professional papers of Abraham Liessin, including correspondence with many important literary figures, manuscripts of essays and poems by Liessin from Di Tsukunft(The Future) and from his published works, clippings, receipts, invitations, and other materials relating to Liessin’s family. This collection shows how Di Tsukunft became one of the leading Yiddish literary journsl during hte 25 years of Liessin's editorship.

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.

The Records of the Forward Association collection consists of the administrative records of the Office of the General Manager of the Forward Association, publisher of the Jewish Daily Forward. The collection contains correspondence, financial materials, minutes, reports, and information related to various anniversary celebrations. These materials serve to illustrate the professional activities of the Forward Association and its General Manager and show the Forward’s importance.