Correspondence, letterbook, order book, printed material, scrapbooks, and an unpublished biography detailing Schoonmaker's naval career. Includes Schoonmaker's letters regarding China and the Far East (East Asia), a letter concerning the survivors of the ship Polaris, accounts of the battle of Mobile Bay, Ala., and details of Schoonmaker's drowning in a hurricane which also wrecked his ship, the screw sloop Vandalia. Correspondents include William E. Chandler, John Adolphus Bernard Dahlgren, Thomas A. Dornin, David Glasgow Farragut, Louis Malesherbes Goldsborough, John C. Howell, George M. Robeson, Richard W. Thompson, Isaac Toucey, Gideon Welles, and William C. Whitney.