Jasper P. Campbell
Robert C. Cox
August 2, 1861
David B. Birney
January 30, 1863
Daniel Butterfield
1864-1866
John H. Humphreys
Charles Hay
August 17, 1861
Alfred Canada
November 8, 1862
Robert D. Blauvelt
1861-1863
William G. Travis
John M. Griffin
David O. Reid
March 14, 1863
18th Army Corps