The Harry Kranner Fiss Collection documents the life of Harry Kranner Fiss, especially highlighting his life in Vienna, Austria, in the 1930s, as a translator for the American military's prosecution team at the Nuremberg Trials in 1945, and his professional career. A smaller amount of material relates to the Kranner/ Fiss family and to the related Römer, Singer, and other families. The collection contains many manuscripts and drafts of articles, novels, and poetry; diaries; extensive photographs and photograph albums; correspondence; notes; official documents; programs; and other materials.

This collection documents the possessions of Heddy Kulka and her family members. Many of the materials are photocopies of 1930s and 1940s administrative paperwork from different official agencies in Vienna. All papers document business and property transactions and were the basis for all restitution claims.

This collection mainly consists of documents pertaining to Hilda and Henry Gottfried from Vienna, Austria. There are, for example, several photographs as well as official documents and letters.

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.

The Herta and Egon Wells Family Collection centers on the emigration of Herta (née Guttmann) and Egon Wells from Vienna to New York by way of Trinidad, with further documentation on their lives prior to and following emigration. Documents relating to the emigration experiences and attempts of other family members are also present. About half the collection consists of personal correspondence, but it additionally includes official documents, immigration and citizenship documentation, educational and professional documents, memorabilia, legal correspondence, a few family photographs, and newspaper clippings.

This collection contains records of the HIAS-ICA Emigration Association HICEM, an organization that supported the emigration of European Jews. It was created in 1927 by the Hebrew Immigrant Aid Society (HIAS), the Jewish Colonization Association (ICA), and Emig-Direkt. Materials include minutes, correspondence, administrative records, and reports on the situation of Jews in various parts of Europe.

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.

This collection contains materials about Jack Gerber and Miriam Gerber née Sondheimer. In particular, it includes materials about their emigration to and settlement in the colony of Sosúa in the Dominican Republic.

Records of several Jewish communities assembled by Jacob Jacobson.

The collection contains a variety of documents by and about Jakob Hoffmann, including many articles, speeches, and responsa.

This collection contains the personal and professional papers of Joseph (Joe) Quittner, mostly correspondence and notebook entries but also including photographs, pictures and newspaper clippings, family papers, personal and professional writings, and other personal documents. These materials reflect Joe Quittner’s childhood experiences in Vienna (Austria) during the Nazi regime, his escape via Kindertransport to England in 1938, and his work as a radio engineer in England as well as a radio technician in Canada. The collection also provides information about the rest of his family, especially his parents Egon and Amalie Quittner (Weltmann), who died in the Holocaust.

The John Kallir Collection contains documents regarding the life of John Kallir, his father Otto Kallir, their ancestors, and genealogical material.

Joseph Braunstein (1992-1996) was a distinguished musician, publicist and musical educator, as well as a keen mountaineer. The Joseph Braunstein collection covers the years 1892-1996 and consists of personal and financial records, correspondence, printed materials, audio cassettes, photograph materials, and a video tape.

This collection extensively documents the career of Joseph Floch, a painter, mostly through articles and exhibition catalogues, along with personal documents and textile workings of his wife, Hermine Floch.

The Joseph Hirsch Collection contains papers of the Hirsch family and other related families and documents gathered during genealogical research. There is correspondence concerning his research, as well as family trees and information about Schaffa, the town where Joseph Hirsch's fathers' family came from.

The collection documents Joseph Löwenherz's activities as the head of Jewish community in Vienna, Austria and his interactions with the Zentralstelle für Jüdische Auswanderung and Gestapo Hauptamt in Vienna. It contains copies of the memos and other reports Joseph Löwenherz had to submit to the Zentralstelle and the Gestapo, which were used as evidence in Adolf Eichmann's trial. Also included are documents and correspondence related to the Eichmann trial as well as correspondence between Löwenherz and his son written between 1939 and 1941 during his travels to several European cities, where he attended meetings concerning the mass repatriation of Jewish citizens out of Europe.

The Julia and David Hoexter Correspondence Collection contains the courtship correspondence of this couple in addition to some later letters and some letters of others, including of family members.

The Julius Buchwald Collection consists of manuscripts, musical compositions, family correspondence, and printed materials. The bulk of the collection consist of Julius Buchwald’s writings and musical compositions, most of which were composed in the late 1930s.

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 Kafka-Goldschmied Family Collection includes theater programs and clippings of opera productions, starring the Viennese opera singer Frieda Kafka Bauer. Also included here is correspondence from Joseph and Maria Jung to their aunt, Eugenie Goldschmied, née Kafka, poems by Fred Bloch, and thank you letters and invitations.

The Kallir Family Collection contains birth certificates, death notices, correspondence, and documents certifying the achievements of those in the Kallir Family.

A handwritten letter and two handwritten poems by Karl Kraus, as well as obituaries and various newspaper articles about Kraus and his work.

This collection documents the education, immigration, and professional life of the physician Karl Rubner (born 1906), covering his early life in the Bukovina (part of Austro-Hungary), his studies in Vienna and Paris, and his later career in New York City. Materials include school and university records, vital records, correspondence, identification papers, articles, licenses to practice medicine, and photographs.

The Kern-Martin Family Collection contains extensive family correspondence and documentation of members of the related Kern-Martin, Kern, Temple, and other families. Correspondence with friends, colleagues, and more distant relatives is included. Other family members' papers include many family photographs, education documents, writings and diaries, official documents, obituaries, and other papers.

The Kirby Kantor Fuchs Collection consists of the papers of Fred and Lisa Kirby and their family members in the Kantor, Fuchs, Mahrer, and Schüssler families. Most of the collection consists of the official documents of the family members, along with restitution correspondence, and details the family members' early lives in Europe and their later emigrations to England and the United States. The collection includes many official documents, restitution correspondence, family photographs, educational and professional papers, some genealogical research, and other papers.

This collection contains correspondence between Paul Arthur Metzger and Richard Kohn and the correspondence of Lilly Kann as well as eulogies for Paul Kann and Minna Kohn and the Mayer Kohn family tree (1796-1936). All items are photocopies.

This collection mainly consists of documents related to Kurt Baeck’s emigration to the Dutch East Indies and Shanghai and immigration to the United States. The materials include immigration documents, identity cards, financial papers, travel documents, and employment records.

This collection contains materials relating to Kurt Landsberger and his mother, Helene née Hoffmann. It consists primarily of Helene's incoming correspondence during the 1910s, in the form of postcards, while she was growing up in German-speaking Prague. It also contains clippings and printed material about Kurt Landsberger.

This collection describes the work and life of the physiognomist and writer Leo Herland. The papers found here emphasize his written work, and the largest portion of the collection is made up of manuscripts of his compositions. The collection also holds personal and professional correspondence, published articles, some personal documents, diaries, clippings, and a few photographs.

This collection consists primarily of research material for Leon Kane’s book, Robert Danneberg, ein pragmatischer Idealist (1980). There are correspondence, writings and articles concerning the political work and arrest of the Austrian social democrat Robert Danneberg (1885-1942). The actual manuscript of Robert Danneberg, ein pragmatischer Idealist is included as well as reviews and some personal documents about Leon Kane.