Correspondence, memoranda, diaries, writings, reports, articles, notebooks, specification sheets, subject files, newspaper clippings, printed matter, blueprints, charts, graphs, photographs, and other papers pertaining primarily to Brown's career in the U.S. Navy Dept. Bureau of Aeronautics, later the U.S. Dept. of the Navy Bureau of Aeronautics, as a naval architect and marine engineer. Subjects include the study of airships, cryogenics, and the uses of helium gas. Includes material pertaining to Brown's personal affairs. Correspondents include Garland Fulton and Charles E. Rosendahl.