Department of the East
Maj. Gen. John E. Wool
All of the United States east of the Mississippi not in other departments.
Dept. of Washington
Bde. General Joseph K. F. Mansfield
The District of Columbia, Alexandria County, Va., and Maryland as far as Bladensburg.
Dept. of Pennsylvania
Major General Robert Patterson
Pennsylvania, Delaware, and Maryland not in the Depts. of Washington and Annapolis.
Dept. of Annapolis
Maj. Gen. George Cadwallader (to 6/11)
Maj. Gen. Nathaniel Banks (after 6/11)
Maryland between Annapolis, Baltimore and Washington.
Dept. of Virginia
Bde. General Benjamin F. Butler
An area 60 miles around Fortress Monroe
Dept. of N.E. Virginia
Bde. Gen. Irvin McDowell
Virginia east of the Allegheny Mountains and north of the James River, except the Dept. of Virginia.