Contains the memoirs and scrapbooks of Bluestone, concerning his numerous communal activities, especially those in the Zionist movement. A description of the collection was published by Hyman B. Grinstein in Publications of the American Jewish Historical Society, no. 35 (1939), and a detailed inventory was prepared by Harry Bluestone (n.d.).

The Julius and Elisabeth Hirsch Collection holds the papers of this couple, with much of the collection consisting of family correspondence. Prominent subjects include the immigration of family members and genealogy of the family. In addition to extensive correspondence and family trees the collection includes notebooks, essays and articles, newspaper clippings, photographs, early drafts of Julius Hirsch's family memoir, and research notes.

The Leo Breslauer Collection documents the professional career of Rabbi Leo Breslauer, and to a smaller extent, his personal life, especially in relation to his and his family’s departure from Germany. Prominent topics include his rabbinical work at congregations in Fürth, Germany and in New York City, his writings, and his thoughts on Zionism.

This collection contains material relating to Norman Salit's activities with various organizations, including the Synagogue Council of America, the Rabbinical Assembly of America, the Wartime Emergency Commission for Conservative Judaism, the Boy Scouts of America, the Jewish Education Committee, the American Child Guidance Foundation, Religion in American Life, the Valley Forge Foundation, the Jewish Theological Seminary of America, and the National Community Relations Advisory Council. There are also speeches, writings, sermons, items related to Sharit's legal work and Zionist activities, as well as some letters from Mordecai Kaplan.

This collection contains correspondence between Horace M. Kallen and many important individuals and organizations, as well as manuscripts, notes and other materials for speeches, financial documents, research materials, academic records, and various other assorted items. These materials serve to illustrate Kallen’s important role in philosophy, education, religion, and politics and his deep involvement with consumer rights, environmental controls, Jewish issues, and civil liberties.