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

Middle, US Army Department Mar 22, 1862 - Jun 21, 1864

US Middle Dept. created Pennsylvania New Jersey Delaware and eastern Maryland transferred from Dept. of the Potomac, Mar 22, 1862
John A. Dix Commander, Mar 22, 1862 - Jun 1, 1862
John E. Wool Commander, Jun 1, 1862 - Dec 17, 1862
US Dept. of the Rappahannock discontinued divided between Middle Dept. and Dept. of the Potomac, Jun 26, 1862
Robert C. Schenck Commander, Dec 17, 1862 - Mar 12, 1863

New Jersey transferred from US Middle Dept. to Dept. of The East, Feb 6, 1863
William W. Morris Temp Commander, Mar 12, 1863 - Mar 20, 1863
Western Virginia transferred from US Dept. of the Ohio to Middle Dept., Mar 16, 1863
Robert C. Schenck Commander, Mar 20, 1863 - Aug 10, 1863
US Dept. of The Monongahela created western Pennsylvania transferred from Middle Dept., Jun 9, 1863
US Dept. of The Susquehanna created eastern Pennsylvania transferred from Middle Dept., Jun 9, 1863
Hancock Brooke and Ohio Counties in West Virginia transferred from US Middle Dept. to Dept. of the Monongahela, Jun 9, 1863
William W. Morris Temp Commander, Aug 10, 1863 - Aug 31, 1863
Robert C. Schenck Commander, Aug 31, 1863 - Sep 22, 1863
William W. Morris Temp Commander, Sep 22, 1863 - Sep 28, 1863
Erastus B. Tyler Temp Commander, Sep 28, 1863 - Oct 10, 1863
Robert C. Schenck Commander, Oct 10, 1863 - Nov 21, 1863
Henry H. Lockwood Commander, Nov 21, 1863 - Mar 12, 1864
St Marys county Maryland and Northampton and Accomac counties Virginia transferred to US Middle Dept. from Dept. of Virginia and North Carolina, Dec 21, 1863

Lewis Wallace Commander, Mar 12, 1864 - Jan 30, 1865

William W. Morris Temp Commander, Jan 30, 1865 - Apr 19, 1865
Lewis Wallace Commander, Apr 19, 1865 - after Jun 25, 1865