Beverly Holcombe Robertson was a cavalry officer in the United States Army on the Western frontier and a Confederate States Army general during the American Civil War.
Robertson was born on a plantation in Amelia County, Virginia. He received an appointment to the United States Military Academy and graduated in 1849. Assigned to the 2nd U.S. Dragoons as a second lieutenant, he attended the cavalry school at Carlisle Barracks. He then served on the frontier at various outposts in New Mexico Territory, Kansas Territory, and Nebraska Territory, fighting at various times with the Apache and Sioux. Reassigned to the 5th U.S. Cavalry, Robertson was promoted to first lieutenant. He became adjutant of the regiment while serving in Utah Territory and soon was elevated to acting assistant adjutant general for the Department of Utah. He was promoted to captain in March 1861, but a few months later accepted a captaincy in the Confederate Adjutant Generals Department.
Source: Wikipedia