Contains the following types of materials: private and official correspondence, newspaper clipping, ephemera, diaries, obituaries, speeches, biographical sketches. Contains information pertaining to the following war and time period: Spanish-American War, Philippine Insurrection. Contains information pertaining to the following military units and organizations: 15th Minnesota Regiment; Cavalry Brigade, 1st Division, 8th Army Corps; Headquarters (HQ), 1st District, Department of Northern Luzon; 3rd Cavalry. General description of the collection: Samuel B.M. Young papers include materials on: frontier service; Spanish-American War especially on the Santiago Campaign and battles of Las Guasimas and San Juan Hill; mutiny of the 15th Minnesota; Philippine Insurrection including a diary of Simeon A. Villa, a member of Emilio Aguinaldo's staff; official correspondence from Headquarters, Provisional Brigade and Headquarters, Cavalry Brigade, 1st Division, Eighth (8th) Army Corps, and Headquarters, 1st District, Department of Northern Luzon; Army War College (AWC) Board; 1903 observation mission of the German maneuvers; Yellowstone National Park; Fort Leavenworth, Kansas (United States (U.S.) Infantry and Cavalry School); Jefferson Barracks, Missouri; and universal military training.