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

Western Virginia, US Army Department Sep 19, 1861 - Mar 11, 1862
West Virginia, US Army Department Jun 24, 1863 - after Jun 25, 1865

US Dept. of Western Virginia created including western Virginia, Sep 19, 1861
William S. Rosecrans Commander, Sep 19, 1861 - Mar 11, 1862

Western Maryland transferred from US Dept. of the Potomac to Dept. of Western Virginia, Mar 3, 1862
US Mountain Dept. created parts of Ohio Michigan Kentucky and Tennessee transferred from Dept. of Ohio Western Virginia transferred from Dept. of Western Virginia Dept. of Western Virginia discontinued, Mar 11, 1862

US Dept. of West Virginia created western Virginia south of Ohio County and west of Hancock Maryland including adjacent counties of Ohio transferred from Middle Dept. to Dept. of West Virginia, Jun 24, 1863
Benjamin F. Kelly Commander, Jun 24, 1863 - Feb 29, 1864
Maryland west of Monocacy river plus Harpers Ferry Virginia transferred from US Dept. of the Potomac to Dept. of West Virginia, Aug 3, 1863
Hancock Brooke and Ohio Counties in West Virginia transferred from US Dept. of the Monongahela to Dept. of West Virginia, Oct 12, 1863

Franz Sigel Commander, Feb 29, 1864 - May 19, 1864
David Hunter Commander, May 19, 1864 - Aug 8, 1864
US MIDDLE Division created including Depts. Of Washington West Virginia and The Susquehanna plus Harpers Ferry Virginia, Aug 7, 1864
Julius Stahel Commander, Aug 8, 1864 - Aug 9, 1864
George Crook Temp Commander, Aug 9, 1864 - Aug 30, 1864
George Crook Commander, Aug 30, 1864 - Feb 21, 1865

John D. Stevenson Temp Commander, Feb 21, 1865 - Feb 26, 1865
Winfield S. Hancock Commander, Feb 26, 1865 - Feb 28, 1865
Samuel S. Carroll Temp Commander, Feb 28, 1865 - Mar 8, 1865
Winfield S. Hancock Commander, Mar 8, 1865 - Mar 20, 1865
George Crook Commander, Mar 20, 1865 - Mar 22, 1865
Winfield S. Hancock Commander, Mar 22, 1865 - Apr 22, 1865
William H Emory Commander, Apr 22, 1865 - Jun 27, 1864