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

Northeastern Virginia, US Army Department Apr 27, 1861 - Aug 4, 1861

Charles W. Sandford Commander, Apr 9, 1861 - May 27, 1861
US Dept. of Northeastern Virginia created including parts of Virginia, May 27, 1861
Irvin McDowell Commander, May 27, 1861 - Aug 17, 1861
Aquia Creek, battle, May 29, 1861 - Jun 1, 1861
Hokes Run, battle, Jul 2, 1861
Manassas Campaign, Jul 16, 1861 - Jul 22, 1861
Blackburns Ford, battle, Jul 18, 1861
Manassas, first battle, Jul 21, 1861
US Division of THE POTOMAC created including Depts. Of Washington and Northeastern Virginia, Jul 25, 1861
US Dept. of The Potomac created Delaware and Maryland transferred from Dept. of Pennsylvania parts of Virginia included Dept. of Pennsylvania discontinued Depts. Of Washington Northeastern Virginia and Shenandoah discontinued absorbed by Dept. of the Poto, Aug 17, 1861