This collection contains papers of Abraham Moshe Bernstein, a renowned cantor, choir master, composer of Jewish liturgical and secular music, music teacher, musicologist, writer, and translator. The bulk of the materials consists of Bernstein’s liturgical compositions and arrangements in both published and manuscript form, as well as a substantial collection of manuscripts and published works by various composers and arrangers. The materials include Hasidic folk songs and melodies, religious songs, Jewish hymns, popular songs, children’s songs, operettas, liturgical pieces, and musical exercises for students; choral volumes and partbooks; unidentified and fragmented musical manuscripts; manuscripts of Bernstein’s own writings; personal correspondence; a photo of Bernstein on his deathbed; secular and religious songs, Sabbath hymns, Hasidic folk songs and melodies, assembled by Bernstein for the S. Ansky Jewish Historical Ethnographic Society in Vilna.

The collection contains materials pertaining to the life and work of Abraham Solomon (Salo) Weissman(n). Materials in this collection include official documents, correspondence, and photographs. Most of the materials pertain to everyday life in pre-war Germany, as well as the struggle to help people escape the country during the war.

This collection contains materials collected and created by Albert Phiebig in the course of his genealogical work. It primarily documents the history of the Phiebig family and related families, but also contains original materials from his ancestors and genealogical tables of other German-Jewish families, as well as other genealogical material and a few personal materials.

The American Jewish Committee Records, Domestic and Geographic Files consists of materials created by executive offices, departments, local offices and chapters of the committee concerning a variety of matters, primarily Jewish civil and religious rights, integration, Jewish communal organizations and communal issues. However, materials found in this collection encompass other civil, racial, and religious minority groups as well. The records consist of briefs, conference proceedings, correspondence, legal documents, memoranda, minutes of meetings, printed materials, reports, resolutions, statements, studies, and surveys.

The collection contains Bernard G. Richards personal and official correspondence, papers from his involvement with the American Jewish Congress and Jewish Information Bureau, published and unpublished writings, publications collected by Richards, articles about Richards and his activities, correspondence and articles from testimonial dinners in honor of Richards, and photographs. Significant correspondents include Joseph Barondess, Louis D. Brandeis, Vladimir Jabotinsky, J.L. Magnes, Louis Marshall, Franklin D. Roosevelt, Jacob H. Schiff, Philip Slomovitz, Arthur Hays Sulzberger, Morris Winchovsky, and Stephen S. Wise.

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.

This collection contains material on the related Kassel and Bruch (Bruck) families as well as on the immigration experiences of Fritz Kassel. Included among the collection are correspondence, manuscripts, clippings, notes, family trees, and a few publications.

This collection contains materials collected by David Trotsky relating to the Jewish community of Belgium in the inter-war period. Materials include printed documents, posters, reports, meeting minutes, and newspaper clippings, mainly pertaining to the Jews of Brussels and Antwerp.

This collection contains various materials related to the Łódź Ghetto which were originally part of the Bund Archives. Materials include memoirs and eyewitness accounts, materials created by the German occupiers, notices from the ghetto administration, documents originating with resistance groups, photographs, post-war articles and newspaper clippings about the Łódź Ghetto, internal ghetto correspondence, and various ephemera items, such as an armband, ghetto money and various work permits.

This collection pertains to the life of Doris Rauch (née Perlhefter), her uncle Norbert Troller, and fellow Holocaust survivors Oscar Bittner and Oscar Jellinek. It encompasses government documents and Rauch’s identification forms issued by the United States and Czechoslovakia, as well as her correspondence relating to family and Holocaust history in the late twentieth and early twenty-first centuries. Included are photographs of friends and family engaged in recreation or as posed portraits, the great majority in black and white. Authored by Norbert Troller himself are a memoir manuscript and family tree denoting those members killed during the Holocaust.

This collection documents the life of Eduard Rudnicki, also known as Eli Rottner, a follower and friend of Constantin Brunner. Throughout his life he was devoted to spread Brunner's and Spinoza's philosophy. This collection shows not only his personal and intellectual life, but exposes his relationship to Brunner, to the Brunner circle and the Internationaal Constantin Brunner Instituut in The Hague. Correspondence between Rudnicki and Brunner and several other known Brunnerians are included, as well as a large amount of manuscripts and newspaper clippings written by Rudnicki and others about and dedicated to Constantin Brunner and Baruch de Spinoza. There is also a photo collection of Rudnicki, Brunner and his circle to be found.

This collection contains the papers of Ernest W. Michel, Holocaust Survivor Journalist and public speaker,including clippings of newspaper articles written by and about Michel, correspondence between Michel and many important Jewish and political figures and autograph files, which Michel collected. Many of these files concern Michel’s Holocaust experiences, speaking engagements, the World Gathering of Jewish Holocaust Survivors, and Michel’s work with the United Jewish Appeal.

The Ernst Heumann Family Collection documents three generations of this family, including members of the Messer, van Gelder, Oppenheim, Haas, and related families. Much of the collection centers on how the businessman Ernst Heumann and his wife Hedi née Messer established themselves in the United States and built their family, although documentation on their early lives in Germany and their emigration is also present. Although the bulk of the collection consists of the family's extensive personal correspondence, official and personal documents are also a central part of the collection. The collection contains correspondence; official documents; educational documents; family writing including poems, essays and short stories; travel memorabilia; some immigration papers; legal documents; Ernst Heumann's business correspondence and papers; family trees; and other documentation.

This collection contains the genealogical research of Ernst Oppenheim, and includes his investigations into the Oppenheim, Pasch, Breit, Altschul, Sirkis and Jaffe families. Included are his extensive correspondence, family trees and copies of original documentation, as well as interview transcripts and notes.

The collection contains personal papers, vital documents, correspondence, and memoirs of two generations of Warschauer and Casper families.

The collection contains play manuscripts, programs, playbills, posters, photographs, correspondence, agreements, scrapbooks, clippings, printed ephemera, and memorabilia relating to Yiddish theater primarily in the early twentieth century, especially the interwar period. Also included are items of printed ephemera related to Yiddish film, Hebrew theater, and a broad range of Jewish performers, including cantors, singers and dancers. Geographically, the materials originate predominantly in Poland and other parts of Eastern Europe, including parts of the Russian Empire and, later, the Soviet Union; and, to a lesser extent, the United States, especially New York City. Also included are materials from Western Europe, Palestine (Eretz Israel), South America, and other regions around the world. Among the theater personalities represented in the collection with significant amounts of material are Herz Grossbard, David Herman, Joseph Winogradoff, Rudolf Zaslavsky, Zygmunt Turkow, Jonas Turkow, Moyshe Lipman, Ida Kaminska, and Esther Rachel Kaminska. The theater groups best represented include the Varshever Yidisher Kunst-Teater (VYKT; Warsaw Yiddish Art Theater), founded by Zygmunt Turkow and Ida Kaminska; the Vilna Troupe; Yung Teater / Nay Teater (Warsaw; Vilna), under the direction of Michael Weichert; the Moscow State Yiddish Theater (known by its Russian acronym "GOSET"); Maurice Schwartz's Yiddish Art Theatre, of New York; and the Hebrew theater "Habimah." A wide variety of other professional as well as amateur theater groups are represented with smaller amounts of material.

The collection consists of family papers pertaining to a number of Jewish families from the Russian Empire, Austro-Hungarian Empire, Germany, and France. Included here are vital documents, personal, professional and financial correspondence, family trees, and financial documents

The Gertrud Kurth Collection consists of material related to Gertrud Kurth and her family members. This collection has over 5 linear feet, and includes personal documents, correspondence and manuscripts. The last 3 linear feet of the collection contain photographs, photograph negatives and slides.

The records of the People's Relief Committee for Jewish War Sufferers consist of correspondence with Jewish communities and relief organizations in Europe, Palestine, Cuba, South America, the United States, and Canada; as well as scrapbooks containing U.S. and Canadian Yiddish and English newspaper clippings and printed promotional literature pertaining to the fundraising activities of the People's Relief Committee in North America and abroad.

This collection contains a large amount of business and legal correspondence and documents pertaining to Auerbach's tenure with Tri-Ergon AG and Tobis Tonbild Syndikat AG, most of which revolve around legal proceedings (patent and civil) in Germany, Switzerland, and the United States concerning Tri-Ergon's sound-on-film technologies which had become film industry standard. The collection also has a folder of Auerbach's personal papers, a considerable number of family and personal photographs (some arranged in albums), some personal correspondence, and a few manuscripts for film projects.

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 Hirschberg-Goldmann Family Addenda holds documentation on the lives and emigration of Harry and Leonor Harter, originally of Breslau. It additionally contains research, conducted by their son, into the history and genealogy of the Hirschberg and Goldmann families and their relations, as well as into the fate of his maternal grandparents, Siegfried and Käthe Goldmann. The collection includes material about the Breslau Jewish community, especially about its Storch synagogue and the Cosel cemetery (Legnica Street cemetery). The collection contains many copies of historical documents, extensive correspondence, photographs and a photo album, copies of articles related to the research of the collection, and some family trees.

This collection contains the minutes, correspondence and financial records of the I.L. Peretz Yiddish Writers’ Union from its founding in 1915 until 1973. Among the correspondence is a fair amount concerning the Fund for Jewish Refugee Writers, unions and union grievances, requests for aid from Jewish writers and activists in New York and abroad, and labor disputes and strikes.

This collection contains research material on the genealogy of Irene Newhouse's ancestors, including members of the Morgenstern, Honigman, and Goldschmidt families and others, mainly from Prussia (in particular, Breslau). It includes as well the correspondence she had with cemeteries, communities and other institutions for her research as well as the family trees she found or made herself.

The Irving J. Block Papers are a blend of personal papers and organizational records, documenting the evolution of the Brotherhood Synagogue (Congregation Beth Achim) in Manhattan and Block’s role as rabbi and his involvement in efforts outside of the congregation. The collection is primarily comprised of correspondence, sermons, minutes, notes, clippings, photographs, audiocassettes, and drafts of Rabbi Block’s memoir.

The Irving Massey Research Collection consists of documentation of his research for his book, Philo-Semitism in Nineteenth-Century German Literature. The collection includes numerous notes, correspondence, photocopies of articles, relevant portions of books, and archival material, bibliographic lists and search results, drafts of sections of his abovementioned book, newspaper clippings, a few photographs, and other papers. The collection represents original order established by an assistant of Irving Massey.

This collection contains documents pertaining to Israel Cohen's role as author, reporter, Zionist leader, as well as his profound interest in documenting and reporting on the changes in European Jewish life between the wars. The collection is comprised primarily of notes, correspondence, clippings, and manuscripts of books about Zionism and topics in Jewish history, articles and reports on Jewish life in Austria, England, France, Germany, Hungary, Lithuania, Poland, Portugal, Rumania, Russia, Spain, the Balkans, and North Africa, circa 1910-1930s. The manuscripts of works on Jewish history include biographies of Jewish personalities and a report on the Czernowitz Yiddish Language Conference of 1908.

This collection contains correspondence, family keepsakes, legal records and other papers of the John Peters family, descended from the Pinkus family of Upper Silesia. The family was notable for its large textile factory in Neustadt, Germany (now Prudnik, Poland) and involvement in local culture, politics, and civil life. "Aryanization" forced Hans Hubert Pinkus, John’s father, to emigrate and take his family to the UK in 1939. The John Peters (Pinkus) Family Papers document the lives and the relationships of these men and their families in the decades after WWII, including legal applications for restitution.

Joseph Roth was one of the most prominent Austrian writers of the first half of the 20th century. Particularly his novels and newspaper essays gained him the respect of contemporary critics. Joseph Roth's papers at the Leo Baeck Institute Archives consist of handwritten and typewritten manuscripts of novels, novellas, short stories, and essays, including mostly complete manuscripts of his works Die Hundert Tage (The Ballad of the Hundred Days), Büste des Kaisers (The Bust of the Emperor), and his 'Trozki' novel Der stumme Prophet (The Silent Prophet). Joseph Roth's journalistic work is also well represented. There are a few personal items and over one hundred photographs of Joseph Roth and his wife Friederike. The Joseph Roth collection also contains correspondence with family and publishers, clippings about Joseph Roth, and reviews of his work. The addenda mostly consist of invitations to conferences and exhibitions, and scholarly articles on Joseph Roth's work and life.

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