The United States Army > Army of the Potomac > 12 Corps


< to April • May 1863 • to June >

Commanded by Brigadier General Alpheus S. Williams

First Brigade Colonel Joseph F. Knipe (to 5/18)
Colonel Archibad L. McDougall
5th Connecticut Infantry Regiment Colonel Warren W. Packer (c 5/2)
Lt. Colonel James A. Betts
Major David F. Lane (to 5/23)
Colonel Warren W. Packer
20th Connecticut Infantry Regiment Major Philo B. Buckingham from 2 Brig. (below)
3rd Maryland Infantry Regiment Colonel Joseph M. Sudsburg from 2 Brig. (below)
10th Maine Infantry Regiment Colonel George L. Beale
Captain John D. Beardsley
28th New York Infantry Regiment Colonel Edwin F. Brown left for Albany to muster out 6/2
123rd New York Infantry Regiment Colonel Archibad L. McDougall from 2 Brig. (below)
145th New York Infantry Regiment Captain George W. Reid from 2 Brig. (below)
46th Pennsylvania Infantry Regiment Lt. Colonel J.L. Selfridge (Col. 5/10)
128th Pennsylvania Infantry Regiment Colonel Joseph A. Matthews (c 5/3)
Major Cephas Dyers
left for Harrisburg to muster out 5/19
Second Brigade Colonel Samuel Ross
20th Connecticut Infantry Regiment Lt. Colonel William B. Wooster to 1 Brig. (above)
3rd Maryland Infantry Regiment Colonel Joseph M. Sudsburg to 1 Brig. (above)
123rd New York Infantry Regiment Colonel Archibad L. McDougall to 1 Brig. (above)
145th New York Infantry Regiment Captain George W. Reid from 2 Div. 2 Brig,, to 1 Brig. (above)
Third Brigade Brigadier General Thomas H. Ruger
27th Indiana Infantry Regiment Colonel Silas Colgrove
2nd Massachusetts Infantry Regiment Colonel Samuel M. Quincy
13th New Jersey Infantry Regiment Colonel Ezra A. Carman
Major John Grimes
107th New York Infantry Regiment Colonel Alexander S. Diven (dis. 5/11)
Colonel Nirom M. Crane
3rd Wisconsin Infantry Regiment Colonel William Hawley
Artillery
1st New York Artillery, Battery K to Artillery Reserve, 4th Vol. Brig.
1st New York Artillery, Battery M Captain George W. Cothran to 12th Corps Artillery Brig. 
4th United States Artillery, Battery F Lieutenant Edward D. Muhlenberg to 12th Corps Artillery Brig.