The bulk of the collection consists of correspondence to Bertha Badt-Strauss from various writers and friends between 1940 and 1969. The letters deal with topics related to emigration/immigration, Judaism, Zionism and publishing opportunities in the United States and Mexico. Included are manuscripts, poems, photographs and clippings of Badt-Strauss's correspondents, as well as some of her own writings.

This collection contains the records of the Council of Jews from Germany (Council for the Protection of the Rights and Interests of Jews from Germany). It represents the interests of former German Jews in matters of restitution and indemnification, legislation, contacts with successor organizations for heirless Jewish property in West Germany, and social work activities, and was a founding member of the Conference on Jewish Material Claims against Germany (the Claims Conference). The records primarily range from the 1950s to the 1970s, and include correspondence concerning all aspects of restitution, particularly with the Claims Conference, internal minutes and other administrative and financial documents, and a small amount of cultural material.

This collection contains a few letters sent to Cohn by notables such as Leo Baeck, Stefan Zweig, Martin Buber, and others, as well as a couple of Cohn's sermons and manuscripts and two scrapbooks.

The Eva Abraham-Podietz Family Collection holds the assorted papers of members of the Jacobus, Rosenbaum, Rosenberg and related families. Included in the collection are official documents, personal papers, family trees, photographs, and articles.

This collection holds the papers of publisher and rare book dealer Felix I. Kauffmann, and contains documents relating to the family publishing house, his military service in World War I, and membership in Jewish organizations. The collection includes some correspondence with Leo Baeck as well as other correspondence, official documents such as military, vital and legal papers, curricula vitae, newspaper clippings and articles, and other papers.

The collection mainly contains articles, notes, manuscripts and other writings by Fritz Friedlaender on various topics as well as articles from other authors on related topics. There are articles on Gabriel Riesser, Friedrich Meinecke, Moritz Heimann, Heinrich Heine, Stefan Zweig, Richard Beer-Hofmann, Ulrich Sanders and others. The collection also contains letters to Friedlaender from Leo Baeck, Ismar Elbogen, and Max Wiener (1935-1972), and misc. personal documents.

This collection offers an insight into the life of Fritz Kaufmann, philosopher and early disciple of Edmund Husserl and the phenomenologist movement. He lectured in philosophy at the Universities of Freiburg and Berlin until forced to leave the country and immigrating to the United States in 1938. The bulk of the collection focuses on Kaufmann's professional responses to the increasing restrictions of the Nazi Regime between the years of 1934 and 1936. Furthermore, the collection includes lecture scripts and a shorthand manuscript of Kaufmann relating to his last unfinished work, the introduction of Leo Baeck's book Aus drei Jahrtausenden.

The collection consists of material pertaining to Rabbi Leo Baeck. The material, mostly secondary, was collected by the Leo Baeck Institute’s staff and in some cases bear markings and notes by the Institute’s staff.

This collection holds official documents, correspondence, genealogical research material, and photographs from and about the Veit-Simon family. It gives an insight into the life of a Jewish family in Berlin during the 19th and 20th centuries. The collection also contains material pertaining to two restitution claims in the 1990s.

The Leo Baeck Collection documents the life and work of Rabbi Leo Baeck, well-known as a leader, scholar, and spokesman for German Jewry. Although the most prominent items in this collection are articles, clippings, and biographical material on Leo Baeck, the collection also holds original manuscripts of his writing, as well as personal documents, correspondence, and a small amount of photographs and artwork.

The bulk of this correspondence contains letters from Rabbi Leo Back and his daughter, Ruth Berlak-Baeck to Rabbi Fritz Steinthal.

The Leo Baeck Family Collection documents the lives and influential events of members of the Baeck and Berlak families, specifically Leo Baeck, Ruth and Hermann Berlak, and Marianne and A. Stanley Dreyfus. Most prominent is the documentation on Leo Baeck's life; other salient themes include the World War I experience of Hermann Berlak and the Dreyfuses' involvement in preserving the memory of Leo Baeck's life and teachings. The collection includes extensive correspondence; a large accumulation of articles, especially those focused on Leo Baeck; a smaller amount of personal papers, manuscripts, drafts and notes; and a few photographs and slides.

This collection contains catalogs, announcements, invitations, reviews and clippings about exhibits at the Leo Baeck Institute, New York.

Series V of the Leo Baeck Institute Institutional Archives consists of clippings, photographs, A/V materials, and a few other original documents that have been assembled at LBI New York, 1955-1997.

The collection contains the correspondence of the Leo Baeck Institute Jerusalem from 1950 up until 2005 and comprises 42 folders. The file contains internal correspondence of the institute's staff, as well as correspondence with other individuals and institutions. The correspondence includes minutes of meetings, requests for support, applications for scholarships, and research inquiries. It also addresses topics such as book publishing, donations of archival materials, cooperation with other institutes, and current affairs.

The Leo Baeck Institute was founded by representative organizations of Jews from Germany for the purpose of collecting material on and sponsoring research into the history of the Jewish community in Germany and in other German-speaking countries from the Emancipation to its dispersion. The Institute is named in honor of the man who was the last representative figure of German Jewry in Germany during the Nazi period. The Leo Baeck Memorial Lecture is an annual event at the Leo Baeck Institute in New York, when esteemed academics and scholars talk about various aspects of the German-Jewish experience and history, as well as to other, related topics.

This collection holds the papers of Leo Baerwald, rabbi of the Munich Jewish community from 1918-1940. Included are some of his religious writings, correspondence, and genealogical material. Other subjects of this collection are the Lazarus family, the Munich Jewish community, and Leo Baeck. Documents include manuscripts, letters, clippings, memorial albums, and family trees.

Series I of the collection pertains to Rabbi Leopold Rosenak's work as a field chaplain during World War I in Kaunas (Kowno) in Lithuania. It contains manuscripts by Rosenak including a report on his work as field chaplain in 1915, private and official correspondence (letters, cables) with individuals and institutions such as "Ausschuss fuer fahrbare Kriegsbuechereien an der Front", Leo Baeck, "Hilfsverein der deutschen Juden", "Kriegsministerium" (Prussian War Office), "Kaiserlich Tuerkisches Generalkonsulat zu Bremen" (Turkish Consulate in Bremen), and Erich Ludendorff. The correspondence documents in particular his activities for the native Jewish population in Lithuania in particular regarding food supplies and education, his service as a field chaplain, and his efforts to support and supply libraries for Prussian soldiers. The series contains, furthermore, various certificates of L. Rosenak, a typescript by L. Hoppe, Protestant field chaplain, titled "Ein Ostermorgen im Grossen Hauptquartier" (typescript, 3 pp.), and flyers in German and Yiddish inviting to services of L. Rosenak in Lida.

This collection contains two volumes of biographical notes on individual congregation members that Warschauer created for use in eulogies, as well as a small amount of correspondence and biographical material on Warschauer himself.

Folder 1 also contains a list of the 90 some-odd members of the Deutscher Juristinnenverein, e.V. (Association for German Women Lawyers) in 1919, with names, position, and addresses. Berent served as treasurer.

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

Robert Raphael Geis (1906-1972) was a rabbi, educator, and Jewish theologian. He identified strongly with German liberal Judaism, but his keen interest in Jewish studies brought him close to leaders of conservative Judaism as well. Before the Second World War Robert Raphael Geis worked as a rabbi for the youth and Religion teacher in Munich and Mannheim, and as a rabbi in Kassel, Germany. After the war he served as a rabbi in Switzerland, the Netherlands, and Germany. In the early 1960s, Raphael Robert Geis became engaged in the dialog of Protestant and Jewish theologians. The Robert Raphael Geis collection consists mainly of correspondence and writings. There are only a few personal documents. The writings consist of newspaper articles, reviews of books on Jewish topics and sermons for major Jewish holidays. The correspondence has two main foci: the periods before and after the Second World War. The first period is characterized by letters written by various leading figures of Jewish communities in Germany and is concerned with employment opportunities for young rabbis, as well as insights into inner workings of congregations. A large amount of letters from this period also come from Robert Raphael Geis' students. The correspondence written after the war centers on theological matters and the workings of the Arbeitsgemeinschaft der "Juden und Christen" (Working Group of "Jews and Christians").