This collection of mainly anti-Semitic material was compiled by a Jewish librarian of German descent who infiltrated the pro-Nazi community developing in New York City in the years leading up to World War II. The bulk of the collection consists of publications and printed matter, with the notable exception of narrative reports that describe first-hand experiences and observations of Nazi-affiliated events. Document types include advertisements, event announcements, books, clippings, correspondence, magazines and newspapers, travel guides, political memorabilia, and other print ephemera.

This collection describes the work and lives of the composer, conductor, and accompanist Warner S. Bass and his wife, the singer Marion Corda Bass. Most prominent among the materials of this collection are the music scores created by Warner Bass; they include works he composed, arranged, orchestrated, transcribed, or performed. Other items include personal documents, correspondence, published sheet music, photographs, essays, notes, concert and recital programs, press releases, and clippings.

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 the personal and professional papers of Isaac Nachman Steinberg, a Russian-Jewish political writer, leader of the Left Socialist Revolutionary Party during the 1917 revolution in Russia, People’s Commissar of Justice in the first Bolshevik government, leader of the Jewish Territorialist Movement and of the Freeland League for Jewish Territorial Colonization, and a founding member of the YIVO Institute in Vilna. These materials include Steinberg’s writings, personal correspondence, clippings, journals, meeting announcements, and some photographs. These materials relate mainly to Steinberg’s work with the Freeland League and plans for the large-scale settlement of Jews in various places around the world.

The records chronicle the ideology behind the Reconstructionist movement, the founding and activities of the Jewish Reconstructionist Foundation, and its growth and transformation from an ideology and movement into an established American Jewish denomination, Reconstructionist Judaism. The records also document two seminal figures in Reconstructionist Judaism, Mordecai Menahem Kaplan and Ira Eisenstein. Included in the collection are the administrative records of the Foundation (minutes, financial records, bylaws), publications produced by the Foundation including manuscript submissions for the influential publication The Reconstructionist, correspondence, sermons, prayer books produced by the Foundation, syllabi, sheet music, photographs, and speeches, among other material. In the correspondence are letters from Martin Buber, J. Edgar Hoover, and Albert Schweitzer.

This collection contains correspondence, pamphlets, periodicals, newspapers, press releases, writings, clippings, brochures, fliers, and posters from the era of the Spanish Civil War, and later, documenting American and international fund-raising for humanitarian relief of Republican Spain; American and international public opinion about the war; the participation of Jews in the International Brigades; and reminiscences and commemorations of the war and, particularly, of the International Brigades, in later years. A portion of the material on relief work pertains to trade union activities, as documented in papers of Charles S. Zimmerman, of the International Ladies’ Garment Workers’ Union, in his capacity as leader of Trade Union Relief for Spain, in New York City. Other organizations represented include the Medical Bureau and North American Committee to Aid Spanish Democracy; the Spanish Information Bureau in New York; the Friends of the Abraham Lincoln Brigade; and the Israeli branch of the association of volunteers in the International Brigades. There are also autobiographical manuscripts by Benjamin Lubelski and Sigmund Stein, who participated in the International Brigades; and contemporary publications in a variety of languages, including publications of the anarchist-leaning Spanish trade union confederations CNT-FAI.