Correspondence with individuals including: A. Almi, Shalom Asch, Nahum Baruch Minkoff, Abraham Cahan, Daniel Charney, Aaron Glanz-Leieles, Jacob Glatstein, Ephim Jeshurin, Zavel Kwartin, Herman (Chaim) Lieberman, Leibush Lehrer, Mani Leib, Kalman Marmor, Kadia Molodowsky, Moshe Nadir, Chaim Pett, Melech Ravitch, Yosele Rosenblatt, Sholom Secunda, Shea Tenenbaum, Baruch Vladeck, Berish Weinstein, M. Winograd, Zalmen Zylbercweig. Correspondence with organizations. Clippings of articles about Adler, including reviews of his memoirs and of the play Yente telebende. Clippings of articles by Adler including stories, jokes, poems. Manuscripts by Adler: plays, humorous sketches, skits, poems, articles, jokes, stories. Photographs of Adler, family and friends.

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 documents relating to Isaac A. Hourwich’s role as an economist, publicist, statistician, lawyer, author, and authority on immigration, as well as his involvement with the labor movement and the formation of the American Jewish Congress. There are reports, minutes of meetings, memoranda, clippings and correspondence, and manuscripts and articles about Jewish labor, Socialism, Russia, Marxism, immigration, and other subjects. These materials demonstrate Hourwich’s important role in American labor, immigration theory, and political and economic theory.

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.

This collection contains the personal and professional papers of William Edlin, editor of The Day and a prominent Socialist. It includes correspondence with individuals and with organizations, newspaper clippings, manuscripts of works by Edlin and by others as well as translations done by Edlin, and some of Edlin’s personal documents. These materials relate to Edlin’s involvement with The Day, with the Socialist Party, the Workmen’s Circle, various labor and Zionist organizations, literary clubs and activities, and with music, art and drama.

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.

The Industrial Removal Office was created as part of the Jewish Agricultural Society to assimilate immigrants into American society, both economically and culturally. It worked to employ all Jewish immigrants. The collection contains administrative and financial records, immigrants' removal records, and correspondence. A database has been constructed to search for persons removed by the Industrial Removal Office.