Reference: Alabama Department of Archives & History. Custodian of the original pictures. Confederate Officers photo album. http://www.archives.alabama.gov/conoffalb/index.html
John Sappington Marmaduke was born near Arrow Rock, Missouri, March 14, 1833. He studied both at Yale and at Harvard before being graduated from West Point in 1857. Resigning his United States commission in 1861, he was first a colonel in the Missouri militia, then lieutenant colonel of the 1st Arkansas Battalion, and colonel of the 3rd Confederate Infantry. Highly commended for his conduct at Shiloh and Prairie Grove, he was promoted brigadier general to rank from November 15, 186?. Marmaduke twice raided into Missouri in 1863, and took part in the attack on Helena, Arkansas, in July of that year. During General Sterling Price's defense of Little Rock in September, Marmaduke was in command of the cavalry of Price's command. He here fought a duel with General L. M. Walker which resulted in the latter's death. Active in the Red River campaign of 1864, he later in the year accompanied Price into Missouri; and on the retreat, while in command of the rear guard, was captured at Mine Creek, a tributary of the Marais des Cygnes in Kansas, on October 25, 1864. While yet in prison he was the last major general appointed in the armies of the Confederacy—on March 18, 1865 to rank from March 17. Upon his release from Fort Warren in July he returned to Missouri and engaged in the insurance business in St. Louis. He was later editor of an agricultural journal, and was defeated for the governorship of the state in 1880, but served four years as a member of the Missouri Railway Commission. In 1884 General Marmaduke was elected governor with little opposition, but died at Jefferson City before the expiration of his term, December 28, 1887. He is buried there.
Ref: Generals in Gray, Lives of the Confederate Commanders
by Ezra J. Warner. Printed by Louisiana State University Press, Baton Rouge and