William Scott Ketchum (1813–1873), U. S. Army officer before and during the American Civil War.
William Scott Ketchum was born on July 7, 1813 in Norwalk, Connecticut. Graduated from the United States Military Academy, at West Point, New York in 1834. He served in the Seminole Wars and on the Western frontier. During the 1857 Cheyenne Expedition of Col. Edwin Vose Sumner against the Cheyenne and the Battle of Solomon's Fork, Captain Ketchum of G Company commanded the 6th Infantry Regiment detachment (of C, D and G Companies).
At the start of the Civil War, Major Ketchum now with US Fourth Infantry Regiment commanded Fort Dalles in Oregon, protecting settlers from Indian raids. He was ordered to San Francisco and then sent to take command of the federal troops in Southern California to protect it from secessionist rising and Confederate invasion from Arizona or Texas. Headquartered in San Bernardino, California his troops kept an eye on the secessionists of the region and reinforced Fort Yuma. Relieved by California Volunteer troops, Ketchum and his regiment assembled in San Pedro for the voyage to eastern United States in the late fall of 1861. Ketchum was promoted to Lieutenant Colonel in late 1861. He was made a brigadier General of Volunteers in February 1862. For the rest of the war he had staff duties in Washington D.C. and was concerned with inspection, recruiting, and auditng.
Following the Civil War, General Ketchum spent four years on special service in the adjutant generals office in Washington D.C., then retired in December 1870. He died on June 28, 1871 in Baltimore, Maryland under suspicious circumstances, the landlady of his boarding house, Elizabeth G. Warton was suspected of poisoning him. She was found not guilty.
- Jack D. Welsh, Medical Histories of Union Generals: William Scott Ketchum, Kent State University Press, 2005. pp. 191-192
- William Y. Chalfant, Cheyennes and Horse Soldiers: The 1857 Expedition and the Battle of Solomon's Fork, University of Oklahoma Press, 2002
- The War of the Rebellion SERIES I, Volume L, Chapter LXII - Operations on the Pacific Coast, Part I, pp.16,27,28,429,450,466,512,515,567,569,585,594,595,601-602,606,607,612,614-615,617,660-661,663,669-670,687
- Welsh,Medical Histories, pp. 191-2