Allison Nelson was born in Fulton County, Georgia, March 11, 1822. He was trained as a lawyer, and was a member of the Georgia legislature in 1848-49; and was also mayor of Atlanta in 1855. However, his primary interest was in military affairs. During the Mexican War he recruited a company of volunteers of which he was elected captain. Later he espoused the cause of Cuban independence and attached himself to the forces of General Narcisco Lopez, by whom he was appointed a brigadier. He was in Kansas during the "border troubles," and removed to Bosque County, Texas, in 1856, where he rendered gallant service in the Indian campaigns of the period before the Civil War. He was elected to the Texas legislature in 1859, and to the secession convention in 1861. Nelson was instrumental in raising the 10th Texas Infantry for Confederate service, and was elected colonel of this regiment. The command reported to General Hindman in Arkansas, and took part in a minor engagement at DeVall's Bluff on White River. Nelson was promoted brigadier general to rank from September 12, 1862 upon the recommendation of General Holmes. He was assigned to command the 2nd Division of Holmes' infantry, consisting of his own and Colonel Flournoy's brigades on September 28, 1862, the day after he fell ill of fever. General Nelson died in camp near Austin, Arkansas, on October 7, 1862, and was buried in Little Rock, then headquarters of the Trans-Mississippi Department.
Ref: Generals in Gray, Lives of the Confederate Commanders by Ezra J. Warner. Printed by Louisiana State University Press, Baton Rouge and London.