Correspondence, memoranda, speeches, drafts and proofs of Haydn's published and unpublished works, articles, scripts, book reviews, financial and legal records, and other papers relating chiefly to his books and writings. Also includes material relating to his work as editor with Atheneum, Bobbs-Merrill Company, Crown Publishers, and Random House; and to his editing of two series, Makers of the American Tradition Series and Twentieth Century Library. Includes drafts of Haydn's books titled The Hands of Esau (1962), Report from the Red Windmill (1967), and Words & Faces (1974).