United States Army >Army of the Potomac >12th Corps
September 1862 • to October >
Commanded by
Brigadier General Alpheus S. Williams (to 9/17)
Brigadier General Samuel W. Crawford (9/17)
Brigadier General George Gordon
Transferred from the 1st Division, 2nd Corps, Army of Virginia on September 12, 1862
| First Brigade | Brig. Gen. Samuel W. Crawford (to 9/17) Colonel J. F. Knipe |
|
| 5th Connecticut Infantry Regiment | Captain Henry W. Daboll | |
| 10th Maine Infantry Regiment | Colonel George L. Beal (w 9/17) | |
| 28th New York Infantry Regiment | Captain William H. H. Mapes | |
| 46th Pennsylvania Infantry Regiment | Colonel Joseph F. Knipe (^ 9/17) Lt. Colonel J.L. Selfridge |
|
| 124th Pennsylvania Infantry Regiment | Colonel Joesph W. Hawley (w 9/17) Major Isaac L. Haldeman |
from Defences Washington |
| 125th Pennsylvania Infantry Regiment | Colonel Jacob Higgins | from Defences Washington |
| 128th Pennsylvania Infantry Regiment | Colonel Samuel L. Croasdale (k 9/17) Lt. Colonel William W. Hammersly (w 9/17) Major Joel B. Wanner |
from Defences Washington |
| Third Brigade | Brig. Gen. George H. Gordon Colonel Thomas H. Ruger |
|
| 20th Connecticut Infantry Regiment | Colonel Samuel Ross | from Connecticut 9/11 |
| 27th Indiana Infantry Regiment | Colonel Silas Colgrove | |
| 2nd Massachusetts Infantry Regiment | Colonel George L. Andrews | |
| 13th New Jersey Infantry Regiment | Colonel Ezra A. Carman | from New Jersey 9/1 |
| 107th New York Infantry Regiment | Colonel Robert Van Valkenburgh | from Def. Washington, Whipple’s Div. |
| 29th Pennsylvania Infantry Regiment | Captain Samuel M. Zulich | from Def. Washington, Whipple’s Div. |
| 3rd Wisconsin Infantry Regiment | Colonel Thomas H. Ruger (^) | |
| Artillery | ||
| 1st New York Artillery, Battery M | Capt. George W. Cothran | |
| 4th United States Artillery, Battery F | Lieutenant Edward D. Muhlenberg | |