Correspondence, manuscripts, diaries, notebooks, copies of scores, drawings, programs, clippings and other printed materials, and photographs. Among the cataloged correspondents are: Leonard Bernstein, Carol Channing, and Douglas Moore.

Maurice Peress (1930-2017) was an American orchestra conductor, arranger, author, and educator. The papers include audio and video recordings, clippings, contracts, correspondence, diaries, memorabilia, notebooks, photographs, posters, programs, research materials, reviews, scores, scrapbooks, and working files, sketches, and other materials.