The collection contains Bernard G. Richards personal and official correspondence, papers from his involvement with the American Jewish Congress and Jewish Information Bureau, published and unpublished writings, publications collected by Richards, articles about Richards and his activities, correspondence and articles from testimonial dinners in honor of Richards, and photographs. Significant correspondents include Joseph Barondess, Louis D. Brandeis, Vladimir Jabotinsky, J.L. Magnes, Louis Marshall, Franklin D. Roosevelt, Jacob H. Schiff, Philip Slomovitz, Arthur Hays Sulzberger, Morris Winchovsky, and Stephen S. Wise.

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.

Papers of Hans Kohn (1891-1971), historian and lawyer, who was active in Zionist organizations. He published extensively on questions of nationalism and related topics. The collection consists of documents relating to Hans Kohn's professional experience, materials relating to his political activities, correspondence, diaries, materials relating to his experience in World War I and as a prisoner of war, personal documents, photos, clippings.

Collection consists of correspondence, speeches, photographs, clippings, and memorabilia relating to Crestohl's activities as a lawyer and as a member of the House of Commons in the Parliament of Canada representing Montreal-Cartier, 1950-1963. It includes material relating to Canadian immigration policies, German rearmament, humane slaughtering, and citizen reactions to these issues; correspondence with members of the Israeli Parliament, and correspondence and speeches relating to his numerous activities in communal and Jewish affairs in general and Zionist organizations and The ORT in particular; and personal writings and memoirs in typescript and published material by and about Leon Crestohl.

The collection also contains correspondence in English and Yiddish between members of the Crestohl family, primarily his mother Rose (Weitzman) Crestohl, 1926-1941, and published and manuscript material, both original and copies, relating to the career of his father Hyman Meyer Crestohl, 1904-1921.

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.