Brevet Major General
David E. Twiggs, May 18, 1857, to February 19, 1861
Lt. Colonel
Washington Seawell, December 10, 1859, to February 6, 1860. (temporary or acting)
Colonel
Robert E. Lee, February 6, 1860, to December 12, 1860. (temporary or acting)
Colonel
Carlos A. Waite, February 19, 1861. to April 23, 1861, when the officers of the U.S. Army's Department of Texas are all taken as prisoners of war at the department's headquarters in
San Antonio, Texas.
Second creation
Bvt. Major General
Gordon Granger, June 19, 1865, to August 2, 1865
Bvt. Major General
Horatio G. Wright, July 20, 1865, to August 18, 1866
Brevet Major General
David E. Twiggs, May 18, 1857, to February 19, 1861
Lt. Colonel
Washington Seawell, December 10, 1859, to February 6, 1860. (temporary or acting)
Colonel
Robert E. Lee, February 6, 1860, to December 12, 1860. (temporary or acting)
Colonel
Carlos A. Waite, February 19, 1861. to April 23, 1861, when the officers of the U.S. Army's Department of Texas are all taken as prisoners of war at the department's headquarters in
San Antonio, Texas.
Second creation
Bvt. Major General
Gordon Granger, June 19, 1865, to August 2, 1865
Bvt. Major General
Horatio G. Wright, July 20, 1865, to August 18, 1866