The records of the American Jewish Congress, a national Jewish agency, concerned primarily with Jewish and other minority civil rights, include the constitution, by-laws, and minutes of the Administrative and Executive Committees and Governing Council of the Congress. The collection has materials generated by the National Biennial Conventions, Executive Directors, including Phil Baum and Henry Siegman, and the General Counsel files of Will Maslow, Commissions and the Jerusalem Conferences of Mayors, Regional Chapters, National Women's Division, Business and Professional Chapters, Public Relations, and miscellaneous activities conducted by American Jewish Congress.

Jacques Judah Lyons, hazzan, rabbi and community leader, was born in Surinam and emigrated to Philadelphia in the early 1800s. Minister of the New York Congregation Shearith Israel for 38 years, he gathered extensive materials on early Jewish history in the United States, Canada and the West Indies. His papers include manuscripts, newspaper clippings, scrapbooks, notebooks, photographs and a Sansom ship's log book. Contains material relating to Jews in North and South America generally and more specifically to Congregation Shearith Israel and the Jews in New York, the Touro Synagogue and cemetery and the Jews in Newport, Rhode Island, Philadelphia and the West Indies. Also contains material relating to Jews in the wars of the United States, correspondence of the Jews with George Washington and items relating to Haym Salomon. Collection consists of manuscript material and five notebooks and three scrapbooks of Lyons. Contains also material not listed in calendar consisting of sermons by Lyons, a manuscript prayer book used in Surinam and a guide for religious ceremonies at Congregation Shearith Israel, as well as letters written during the Civil War period and correspondence relating to the personal life and career of Lyons.