Contains the following types of materials: memoirs, correspondence, papers. Contains information pertaining to the following wars and time periods: Indian Wars, 1865-1891; Spanish-American War -- U.S., -- Post War Cuban Occupation; Phillipine Insurrection; 1899-1917; World War I -- U.S. Contains information pertaining to the following military units and organizations: Companies A, K, & E, 5th U.S. Infantry Regiment; 13th U.S. Infantry Regiment; and 12th U.S. Infantry Regiment. General description of the collection: William H.C. Bowen papers include officer's draft of service, 1875-1919; indian frontier, Nez Perce campaign and Philippines; Bowen's papers, published works, research on military subjects including Battle of Little Big Horn and Adobe Walls Fight; also genealogical material; correspondence and paper about William compiled by Gladys Bowen; three letters to Col. Charles Gratiot, 1786-1855.