Bernhard Kahn dedicated 50 years of his life to welfare activities in order to help distressed Jews. Among others he worked for the Hilfsverein der deutschen Juden, the American Jewish Joint Distribution Comittee and the American Joint Reconstruction Foundation .The collection contains personal as well as professional correspondence, articles on Bernhard Kahn’s work and biography, lectures and speeches by him and a number of official documents such as letters of consignment, citizenship papers and educational and professional certificates.

Folder 1 contains the Questionnaire of the Austrian Heritage Collection at the Leo Baeck Institute and additional biographical documents. Vital documents include birth certificates, residency permits, military documents, and other related documents stemming from the war years in Cernauti / Czernowitz. There are also documents relating to his attempts to emigrate from Romania, an honorary diploma, correspondence relating to emigration and exhibitions, his parents' death certificates and other post-World War II Romanian and American identification documents.

This collection primarily contains materials relating to Emery I. Gondor's varied career as an illustrator, creator of puzzles, photographer, and writer. It also includes some personal documents and vital records, as well as materials relating to Emery Gondor's brother, artist Bertalan Gondor. It is closely related to the collection AR 25085 (Papers of Emery and Bertalan Gondor).

The collection contains documentation of the Erna Weingold Kleinermann family, including vital records, identity cards and passports, school certificates, and correspondence.

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.

The Gertrude S. Goldhaber Collection, which forms part of the larger Maurice and Gertrude Goldhaber Collection, consists of mainly professional papers of nuclear physicist Dr. Gertrude Scharff Goldhaber. The collection is comprised of professional correspondence, research files, materials related to conferences and lectures, clippings and article reprints, research notes, transparencies, photographs, glass slides, manuscripts and publications, and materials related to various organizations with which Dr. Goldhaber was involved. There are also some personal documents, including correspondence, calendars and diaries, and educational records.

The Gustav Beck Collection includes materials documenting Gustav Beck's genealogical efforts, personal correspondence, documents, memoirs, and a large amount of photo albums.

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.

The Herbert Strauss Collection documents the life and professional activities of Herbert Strauss, writer, historian, and teacher. The collection includes correspondence, court procedures, documents, lists, manuscripts and lectures, notes, photographs, printed materials, and a small amount of teaching materials. Materials constituting the collection reflect various aspects of Herbert Strauss’ personal life, teaching, research and writings in the fields of German-Jewish history and relations, Anti-Semitism, and assimilation. The collection includes both, personal and professional materials related to Herbert Strauss, with personal being by far the smaller.

This collection holds the papers of the lawyer and librarian Hugo Knoepfmacher. The main subject of the collection is his personal and professional life, although material concerning other members of the family is also present. The collection consists of official documents, notes, correspondence, manuscripts, some clippings, and a very small amount of published material.

The Marianne Salinger Collection comprises a broad variety of personal and professional documents pertaining to Marianne Salinger and her family. Spanning four generations, the material is clustered around individual stories of several family members and their relationships, each illustrated by different document types and genres, including personal and official letters, diaries, clippings, photographs and slides, various certificates, advertisements, restitution papers, as well as a couple of annotated books of various genres such as children's books, one cookbook, one autobiography and a language textbook. Some translations are included.

This collection describes the work and lives of the composer, conductor, and accompanist Warner S. Bass and his wife, the singer Marion Corda Bass. Most prominent among the materials of this collection are the music scores created by Warner Bass; they include works he composed, arranged, orchestrated, transcribed, or performed. Other items include personal documents, correspondence, published sheet music, photographs, essays, notes, concert and recital programs, press releases, and clippings.

The Max Buxpan Collection sketches the biography of Max Buxpan and his family. The collection centers on the correspondence of Buxpan family members and associated friends. Most of these documents date from the 1930s until the 1960s, including the time of immigration. Buxpan also collected a lot of material about the First and Second World Wars and the immediate periods thereafter, primarily postcards and newspaper articles.

The collection includes memoirs, poems, notes, correspondence, photographs and clippings pertaining to Miriam Merzbacher-Blumenthal, to her husband Peter and to her mother Ilse Blumenthal-Weiss.'Materials concentrate on the 1940s, when Miriam Merzbacher-Blumenthal and her mother Ilse Blumenthal-Weiss lived in Amsterdam and New York, as well as on correspondence from the 1950s and 1960s.

The Rachel Wischnitzer Collection contains correspondence, lecture notes, photographs, lantern slides, and negatives documenting Rachel Wischnitzer’s career as an art historian, curator, professor, consultant, and author. Also included are correspondence, records, and photographs pertaining to her husband Mark Wischnitzer’s work as a historian, editor, and Secretary General of the Hilfsverein der Deutschen Juden.

The Victoria (Zetlin) Russman Pordes Collection holds the correspondence, personal, and professional papers of Victoria Pordes, along with other members of her family, especially her sister Anna (Zetlin) Jarosik. Much of the collection consists of correspondence, notably the personal family correspondence between Zetlin siblings. In addition, the collection includes official, and educational papers, postcards, photographs, scrapbooks, tourism materials, immigration and citizenship papers, notebooks, address books, diaries, and other items.

The Wladimir G. Eliasberg Collection documents the lives of the members of the Eliasberg family and to a lesser extent professional activities of Wladimir Eliasberg. The collection consists of personal correspondence, writings, vital and professional documents, and printed materials.