World History Maps Interactive Historical Atlas of the Civil War, detail page for:

US Army Detachment Eighteenth Corps, Feb 1, 1863 - Apr 16, 1863
US Army Department of the South forces, Apr 16, 1863 - Oct 31, 1863

John G. Foster Commander, Dec 24, 1862 - Jul 29, 1863

Innis N. Palmer Temp Commander, Jul 29, 1863 - Aug 14, 1863
John J. Peck Temp Commander, Aug 14, 1863 - Aug 18, 1863
John G. Foster Commander, Aug 18, 1863 - Nov 11, 1863