This collection contains writings, minutes, financial records, correspondence, printed materials, newspaper clippings, and photographs relating to Broido's employment, investments, and Jewish and non-Jewish communal activities. It includes material regarding the department store, Gimbel Bros. (1934-1966), where he was associated with Bernard Gimbel, and where he served as Executive Vice President and as Chairman of the Advisory Committee (1953-1961); Temple Emanu-El (1957-1970), where he served as trustee and opposed secession from the Union of American Hebrew Congregations; the American Jewish Joint Distribution Committee (1944-1976), serving as President from 1965-1975, and where he was involved in the investigation of the Charles Jordan murder in Prague (1967); the Union of American Hebrew Congregations (1953-1972) where he served as trustee and played an active role in financial matters and relations with the Hebrew Union College; the United Jewish Appeal (1941-1972) where he served as President (1951-1952), trustee and member of the Board of Directors; the New York City Community College (1956-1972) where he served as trustee; and the Department of Commerce and Industrial Development of the City of New York (1961-1971) where he served as Commissioner (1961-1966).

Founded in 1969, the American Association for Ethiopian Jews (AAEJ) was instrumental in the international effort to promote recognition of the Beta Israel (known among non-Jewish Ethiopians as "Falashas") by Israeli authorities, and to assist Jewish emigration from Ethiopia to Israel. The extensive files of the AAEJ include case work files, research materials and Jewish artifacts collected in Ethiopia by AAEJ workers. In the wake of the successful evacuation of Ethiopian Jewry to Israel in 1993, the AAEJ decided to disband and voted to deposit its records at the American Jewish Historical Society. Included are correspondence, office files, photographs, slides, videotapes, audiocassettes and other materials which pertain to AAEJ's efforts to raise the consciousness of the American Jewish community about this unique Jewish subculture. The organization's papers supplement those of its founder, Graenum Berger, which are also held at the American Jewish Historical Society.