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 auditing.[3]
Following the Civil War, General Ketchum spent four years on special service in the adjutant general’s 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, Ellen G. Wharton being suspected of poisoning him. She was found not guilty.[4][5][6]
In popular culture
The mysterious circumstances surrounding General Ketchum’s death were dramatized in the CBS radio program Crime Classics on 27 July 1953 in the episode entitled ‘The Final Day of General Ketchum’. Ketchum was portrayed by Russell Simpson in the broadcast.