The Leo Baeck Family Collection documents the lives and influential events of members of the Baeck and Berlak families, specifically Leo Baeck, Ruth and Hermann Berlak, and Marianne and A. Stanley Dreyfus. Most prominent is the documentation on Leo Baeck's life; other salient themes include the World War I experience of Hermann Berlak and the Dreyfuses' involvement in preserving the memory of Leo Baeck's life and teachings. The collection includes extensive correspondence; a large accumulation of articles, especially those focused on Leo Baeck; a smaller amount of personal papers, manuscripts, drafts and notes; and a few photographs and slides.