The collection contains various documents pertaining to Akiva Ernst Simon.

The collection contains various materials pertaining to the historical research conducted by Baruch Ophir, and comprises three folders.

Correspondence, including letters from Leo Baeck, Salo Baron, Julie Braun-Vogelstein, Martin Buber, Werner Cahnmann, Max Dienemann, Ismar Elbogen, Erich Fromm, Hermann Fürnberg, Nahum Glatzer, Nahum Goldmann, Max Gruenewald, Max Grunwald, Siegfried Guggenheim, Ernest Jones, Hermann Kesten, Guido Kisch, Adolf Kober, Franz Kobler, Joachim Prinz, Lessing Rosenwald, Ingrid Warburg, Alma Mahler-Werfel, and Franz Werfel.

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).

The collection contains various materials pertaining to Ernst Marckowicz.

The first folder contains essays and manuscripts written by Loewenson, as well as his letters written to the heads of various Zionist organizations (e.g., Keren Hayesod) during the 1920s. Also included are reminiscences about Erwin Loewenson. The second folder contains newspaper articles written by Loewenson.

The collection contains original and copied documents of Blau Weiss activities in Germany.

This collection contains the proceedings of the 1. Allgemeiner Jüdischer Studententag (First Jewish Students’ Conference: Vienna, Austria: 1919), as well as two speeches delivered on the 50th anniversary of the student Zionist association Kadimah (1933) and an exchange of letters regarding the unseating of Weizmann as head of the Zionist World Organization.

The collection contains various materials pertaining to Ludwig Tietz, collected by Gustav Horn.

In this memorial article, Herzfeld offers deep insight into the problems and the predicament for German Jews from 1933 to 1938. He especially describes the creation and the work of “Reichsvertretung der deutschen Juden”, the new organization for German Jews, facing the Nazi-regime.

The file contains various documents relating to Recha Freier and her activities in Youth Aliyah in Germany.

The file contains various materials pertaining to the religious Zionist youth movements Esra (עזרא) and Zeire Misrachi (צעירי מזרחי, ברית תורה ועבודה) in Germany, and comprises two folders.

Folder I contains the following: Personal documents of Moshe Liwni/Robert Weiss: his doctoral certificate, business cards, and a CV. One letter addressed to him. Four published works written by Liwni,. and four (copies of) essays and notes written by him, as well as two unpublished plays. Folder II contains a list of essays he wrote and several newspaper articles written by him.

The first folder contains a two part typescript by Salomon Samuel, a reflection on the period of Jewish emancipation (5600-5700, i.e. circa 1840 to 1938) titled "5600-5700. Rueckblick auf ein Jahrhundert juedischer Weltenaera". In the first part (27 pp.) Samuel describes the historical events from the so called "Damascus affair" (1840) to the Évian Conference (1938), in the second part titled "Religioese und geistesgeschichtliche Entwicklung" (179 pp.) the Jewish religious and intellectual developments in the Era of emancipation.

The second folder contains a photocopied typescript titled "Einfuehrung", the introduction to Samuel's "Ein Lehrbuch juedischer Religion" (published in 1930) and a biographical article by Samuel's son Jochanan Samuel (1901-1976) titled "Rabbiner Dr. Salomon Samuel" published in: Muenster am Hellweg. 6/9 (June, 1978). pp. 81-88.

The collection contains documentation of the Sonneborn family, particularly Leo Sonneborn and his wife Settie; Siegmund Sonneborn; as well as photographs of Line Speyer née Sonneborn’s family.