| 1st Corps - Army of the Potomac | 2nd Corps - Army of the Potomac |
3rd Corps - Army of the Potomac |
|---|
Piedmont Flag Company
First Army Corps.
August 12, 1862.--The troops of the Mountain Department were to constitute the First Corps, under command of Major-General Fremont.
April 15, 1863.--Major-General John F. Reynolds assigned to command.
March 23, 1864.--Discontinued, and troops transferred.
November 28, 1864.--Reorganized under the command of Major-General Hancock.
Second Army Corps.
August 12, 1862.--The troops of the Shenandoah Department were to constitute the Second Corps, under command of General Banks.
September 12, 1862.--The President ordered that this corps should be known hereafter as the Eleventh, and that the corps arranged in General Order No. 101, of March 13, 1862, Headquarters Army of the Potomac, as the Second, should be known as such.
June 28, 1865.--Discontinued.
Third Army Corps.
August 12, 1862.--The troops under General McDowell, except those within the city and fortifications of Washington, were to form this corps, and to be under his command.
September 12, 1862.--The President ordered that this corps should be known hereafter as the Twelfth; and that the corps arranged as the Third in General Orders No. 101, of March 13, 1862, Headquarters Army of the Potomac, should be known as such.
March 23, 1864.--Discontinued, and troops transferred.