The collection documents American Jewish Committee’s efforts to combat all forms of discrimination against the Jews in the United States. Additionally, there are materials pertaining to AJC’s work regarding other minority groups in the United States. The collection offers researchers a unique chance to see how and what was done prior to the changes in public opinion and civic and legal laws. The American Jewish Committee Records, Subject Files consists of materials created by executive offices, departments, local offices and chapters of the Committee concerning a variety of matters; foremost Jewish civil and religious rights, immigration, and the Holocaust.

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.

The Lithuanian Jewish Communities Collection is comprised of documents relating to Jewish cultural, religious, social, political, and economic life in approximately 150 towns in Lithuania. The bulk of the collection pertains to the period between 1919 and 1926, when elements of a system of Jewish national autonomy existed within the Lithuanian state, including a Ministry of Jewish Affairs and governmentally empowered Jewish community councils. Smaller parts of the collection relate to the periods before (1860-1918) and after (1927-1940) the autonomy.

Books, manuscripts, pamphlets, legal documents, correspondence, photographs, relating to Klein's life and career. Materials relate mainly to Klein's antisemitic and anti-Zionist activity and include: lawsuits against individuals and reprints of antisemitic articles from the Dearborn Independent, 1920s; reprints of the Protocols of the Elders of Zion; copies of H.K. Klein's Weekly News.

This collection contains documents of journalist and left-wing political activist Paul Novick, consisting mainly of correspondence, subject files, manuscripts, photographs, and newspaper clippings. These materials relate to Novick’s career as long-time editor of the Morning Freiheit (Morning Freedom), his important role in the worldwide Communist movement, the history of the Freiheit itself, and Jewish and general politics. These materials demonstrate Novick’s important, and changing, role in the history of Communism, as well as his career as a Yiddish journalist and author.

This collection consists of general reference files from the New York City headquarters of the American Jewish Committee (AJC). Materials originated in various AJC departments and were maintained by a Central Records office until 1962, when records retention policy was decentralized. Document types include correspondence, memoranda, reports, clippings, and published materials concerning individuals, businesses, government agencies, and other organizations related to the work of the AJC.

The collection represents the papers of Morris David Waldman (1879-1963), a rabbi, social worker and communal leader, who was appointed executive secretary of one of the main Jewish defense organizations, the American Jewish Committee (AJC), in 1928. The executive secretary had top executive function at the organization and was in charge of working out and implementing the organization’s projects and policies regarding monitoring the civil and human rights of the Jews, and intervening on behalf of the Jews both in the U.S. and abroad. In 1942, Waldman was promoted to executive vice-president, a position he held until his retirement in 1945. The Morris Waldman Files relate to all of Waldman's activities as acting executive secretary and vice-president of the AJC.

Printed materials, correspondence, notes, manuscripts relating to Jewish life in Mexico, Central America, South America, Romania. The materials reflect Liebman's careers in Jewish organizations as well as his work as a historian.

The collection contains the papers of Shalom Schwarzbard (1886-1938), the Russian-born French Jewish watchmaker, revolutionary, writer and activist for Jewish self-defense. In May 1926 in Paris, Schwarzbard assassinated the exiled Ukrainian nationalist leader Simon Petlyura, whom he held responsible for the pogroms against the Jews in the Ukraine in 1918-1921. His trial in October 1927, at which he was acquitted, drew worldwide attention. The collection consists of correspondence, manuscripts of Shalom Schwarzbard's autobiographical writings, personal documents, clippings, and printed ephemera, as well as poems by Schwarzbard's wife Anna and others. Materials in this collection mostly relate to Shalom Schwarzbard's writings, his speaking engagements following his acquittal, and his efforts in the 1930s to organize Jewish war veterans and war victims of the First World War.

This collection consists of materials relating to Jewish life in countries around the world from 1778-1957. Topics include cultural and educational organizations, political parties and elections, charitable institutions, labor, and religious life.