Commanded by Major General Franz Sigel

Sigel’s Division was created on June 4, 1862 from units in the Middle Department and Defenses of Washington. On June 26 it became the 2nd Division of the 2nd Corps of the Army of Virginia.

First Brigade Brig. Gen. James Cooper
3rd Maryland Infantry Regiment
102nd New York Infantry Regiment
109th Pensylvania Infantry Regiment Colonel Henry J. Stainrook
111th Pensylvania Infantry Regiment Colonel Matthew Schlaudecker
8th & 12th United States Infantry
Second Brigade Brig. Gen. John P. Slough
3rd Delaware Infantry Regiment
1st District of Columbia Infantry Regt.
11th New York Sate Militia  to Harpers Ferry
60th New York Infantry Regiment
78th New York Infantry Regiment
Purnell (Maryland) Legion Infantry
1st New York Light Artillery, Battery K to Army VA, 2 Corps 2 Div.
1st New York Light Artillery, Battery L to Army VA, 3 Corps 1 Div.