< to August • September 1862

“The Pennsylvania Reserves”

Commanded by Brigadier General John Reynolds

Transferred to become the 3rd Division, 1st Corps, Army of the Potomac on September 12, 1862

First Brigade Brigadier General Truman Seymour
1st Pennsylvania Reserves Colonel Richard B. Roberts
2nd Pennsylvania Reserves Colonel William McCandless
5th Pennsylvania Reserves Colonel Joseph W. Fisher
6th Pennsylvania Reserves Colonel William Sinclair
13th Pennsylvania Reserves Colonel Hugh McNeil  from 3 Brig. (below)
Second Brigade Brigadier General George G. Meade
3rd Pennsylvania Reserves Colonel Horatio G. Sickel (sick 9/1)
Lt. Colonel John C. Clark
4th Pennsylvania Reserves Colonel Albert L. McGilton
7th Pennsylvania Reserves Colonel Henry C. Bolinger
8th Pennsylvania Reserves Major Silas M. Baily
Third Brigade Lt. Colonel Robert Anderson (9/1)
Colonel Thomas F. Gallagher
9th Pennsylvania Reserves Lt. Colonel Robert Anderson
10th Pennsylvania Reserves Lt. Colonel Adoniram J. Warner
11th Pennsylvania Reserves Colonel Thomas F. Gallagher (9/1)
Lt. Colonel Samuel Jackson
12th Pennsylvania Reserves Captain Richard Gustin
13th Pennsylvania Reserves Colonel Hugh McNeil  to 1 Brig. (above)
Artillery
Battery A, 1st Pennsylvania Artillery Lieutenant John G. Simpson
Battery B, 1st Pennsylvania Artillery Captain James H. Cooper
Battery G, 1st Pennsylvania Artillery Lieutenant Frank P. Amsden
Battery C, 5th United States Artillery Captain Dunbar R. Ransom