The collection includes manuscripts, typescripts, and proofs of books, essays, and plays including a biography of Aubrey Beardsley, and the novels The Splendid Wayfaring and The Three Students; originals and proofs of illustrations, bookplates, and cover art; correspondence; and contracts with publishers. The majority of the correspondence consists of Macfall's outgoing letters to Earl E. Fisk, a British-born book collector, anthologist and insurance agent who lived in Green Bay, Wisconsin, and assisted Macfall in placing his books with American publishers.