Correspondence, diaries and daily logs, notes, biographical material, speeches and mss. of writings, files relating to advisory board memberships, conferences, symposia, and meetings, clippings, reference materials, and other papers, relating chiefly to Thompson's activities as chief physicist, Naval Proving Ground, Dahlgren, Va. (1923-1942), director of research and development, Norden Laboratories (1942-1945), and technical director, Naval Ordnance Test Station, China Lake, Calif. (1945-1952). Includes some material relating to Thompson's activities as physics professor at Clark University, Worcester, Mass. (1917-1919), and Kalamazoo College, Kalamazoo, Mich. (1920-1923).