Chattanooga Campaign
On March 15, 1863, Humes was promoted to the rank of major and assigned to command the artillery of Maj. Gen. Joseph Wheeler's cavalry corps. He participated in the Battle of Farmington on October 7, and was wounded in a foot during the fight. Upon recovery, Humes was promoted to brigadier general on November 16. He was then given brigade command in Wheeler's cavalry, leaving the artillery service. He also fought during the Battle of Lookout Mountain and the Battle of Missionary Ridge of the Chattanooga Campaign in the fall of 1863.