The Katharine Brush papers consist chiefly of material relating to an unpublished novel by Brush entitled "Lover Come Back". The novel, started in the early 1940s, went through multiple revisions and had a working title of "Story of Sylvia". Materials relating to the work include research files, outlines and synopses, drafts, and supplementary material, such as excerpts, discards, and schedules. The papers also include research files on military topics.