This collection documents the life and work of the economist Arthur Prinz. It is comprised of correspondence, documents, diaries, clippings, research notes, index cards, and books and offprints. Information on various topics, especially immigration and emigration during the 1930s, Jews and the German economy, and Marxist economics will also be found here.

The collection contains extensive correspondence of Baumgardt including letters from the front to his family during World War I, and correspondence with Conrad Aiken, Hannah Arendt, Julius Bab, Bertha Badt-Strauss, Leo Baeck, Isaiah Berlin, Walter Benjamin, Hugo Bergmann, Kurt Blumenfeld, Ilse Blumenthal-Weiss, Martin Buber, John Dewey, Dora Edinger, Albert Einstein, Ismar Elbogen, Elisabeth Foerster-Nietzsche, Felix Frankfurter, Sigmund Freud, Georg Heym, Salomo Friedlaender (Mynona), Max Gruenewald, Hermann Hesse (including photos, watercolors, autographed poems), Sidney Hook, Rudolf Kayser, Wolfgang Koehler, Hans Kohn, Georg Landauer, Heinrich Mann, Thomas Mann, Hans Margolius, Reinhold Niebuhr, Erwin Panofsky, Jacob Picard, Kurt Pinthus, Joachim Prinz, Hyman Rickover, Eleanor Roosevelt, Arthur Schlesinger, Hans Joachim Schoeps, Gershom Scholem, Toni Sender, Ernst Simon, Chaim Weizmann, Beatrice Webb, Robert Weltsch, and Arnold Zweig.

Also included are manuscripts, articles, lectures, and offprints by and about Baumgardt on philosophy, ethics, religion, literature, politics, and other subjects; transcripts of conversations with Einstein and Freud.

Correspondence and reviews about publication of Horizons of a Philosopher (the Festschrift for David Baumgardt).

Letters, notes, and manuscripts by Dorothy Canfield Fischer.

Photos of Baumgardt's family and friends.

Organizational records of the Zionist youth group Ha-Poel Ha-Zair, including minutes of the central council of the organization in Berlin and letters from Georg Landauer, Eugen Taeubler and Robert Weltsch, 1919-1921.

[AV collection (records)] Interview with Voice of America, February 23, 1955 ( 1 record)

[OS 80] Article "Erwachen der Romantik" (1930) (copy in Box 16, Folder 16); page from the Juedische Rundschau with notes by Baumgardt (copy in Box 18, Folder 19); speech "Jeremy Bentham, an Englishman, to the Citizens of the Several American United States, London 1817" (copy in Box 24, Folder 2)

[R 12] Sigmund Freud Autographs (copies in file).

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.

This highly diverse collection contains material of various sources, times, and genres, from Germany, Austria, Eastern Europe and Argentina. The documents included range from correspondence, such as letters, postcards or telegrams, to emigration documents, such as ship lists and permits, to vital records, such as family registers, various certificates and awards, to a number of small publications, such as brochures, programs and clippings. There is also a number of Jewish devotionals, including Yahrzeit calendars, religious graphics and prayer manuals, as well as some ephemera.