The New York Board of Rabbis is a cross-denominational Jewish organization for rabbis that seeks to foster fellowship, provide educational enrichment, and rise above theological differences to strengthen and defend the Jewish community advancing its’ educational, religious, and social values. The collection documents the governance of the Board and its activities in serving the Jewish community of New York and at large.

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.

The collection contains the records of the Jewish Defense League (JDL), a militant Zionist organization with a stated goal to protect Jews from all forms of antisemitism. The materials document the origins of the JDL, the organization's mission statement and recruitment strategies and account for its most definitive actions. The collection also reflects the League's turbulent relationship with, and its criticism of the mainstream Jewish agencies, as well as examples of criticism of the League's controversial methods from various sources. The collection prominently covers the JDL's role as a pioneer of the American Soviet Jewry movement. Materials on the 1971 World Conference of Jewish Communities are also included. The documents include the Articles of the Organization, correspondence and press releases, membership and recruitment materials, newsletters, newspaper clippings and ephemera.

The collection includes materials pertaining to the Jewish Defense Organization, a radical Zionist Jewish organization devoted to protecting Jews from their enemies, imaginary and real, using all means possible. Collection consists of correspondence, financial documents, legal documents, such as depositions, subpoenas, transcripts, and a large amount of printed materials. The bulk of the materials consist of a variety of printed materials and materials pertaining to a number of legal cases against various members of the Jewish Defense Organization and the organization itself.