United States Army > Army of the Potomac


< to August • September 1862 • to October >

Commanded by Brigadier General Fitz John Porter

First Division

Brigadier General George W. Morrell
First Brigade Colonel James Barnes
2nd Maine Infantry Regiment Colonel Charles W. Roberts
20th Maine Infantry Regiment Colonel Adelbert Ames from Dept. of Washington
18th Massachusetts Infantry Regiment Lieutenant Colonel Joseph Hayes
22nd Massachusetts Infantry Regiment Lt. Colonel William S. Tilton
32nd Massachusetts Infantry Regiment Colonel Francis J. Parker to 2 Brig. (below)
1st Michigan Infantry Regiment Captain E. W. Belton
13th New York Infantry Regiment Colonel Elisha G. Marshall
25th New York Infantry Regiment Colonel Charles A. Johnson
118th Pennsylvania Infantry Regiment Colonel Charles M. Prevost (w 9/19)
Lieutenant Colonel James Gwyn
from Dept. Washington
Second Brigade Brigadier General Charles Griffin
9th Massachusetts Infantry Regiment Colonel Patrick R. Guiney
32nd Massachusetts Infantry Regiment Colonel Francis J. Parker from 1 Brig. (above)
4th Michigan Infantry Regiment Colonel Jonathan W. Childs
14th New York Infantry Regiment Colonel James McQuade
62nd Pennsylvania Infantry Regiment Colonel Jacob B. Sweitzer
Third Brigade Colonel H. S. Lansing (to 9/18)
Colonel Thomas B. W. Stockton
16th Michigan Infantry Regiment Lt. Colonel Norval E. Welch
12th New York Infantry Regiment Captain William Huson
17th New York Infantry Regiment Lt. Colonel Nelson B. Bartram
44th New York Infantry Regiment Colonel James O. Rice
83rd Pennsylvania Infantry Regiment Captain Orpheus S. N. Woodward
Sharpshooters
1st United States Sharpshooters Captain John B. Isler
Division Artillery
3rd Massachusetts Battery Captain Augustus P. Martin
5th Massachusetts Battery
1st Rhode Island Artillery, Battery C Captain Richard Waterman
5th United States Artillery, Battery D Lieutenant Charles E. Hazlett

Second Division

Brigadier General George Sykes
First Brigade Lieutenant Colonel R. C. Buchanan
3rd United States Infantry Regiment Captain John D. Wilkins
4th United States Infantry Regiment Captain J. B. Collins
12th United States Infantry Regiment Capatin Matthew M. Blunt
14th United States Infantry Regiment
Second Brigade Lieutenant Colonel William Chapman
2nd United States Infantry Regiment Major Charles S. Lovell
6th United States Infantry Regiment Captain Levi C. Bootes
10th United States Infantry Regiment
11th United States Infantry Regiment Major DeLancey Floyd-Jones
17th United States Infantry Regiment Major George L. Andrews
Third Brigade Colonel Gouverneur K. Warren (BG 9/26)
5th New York Infantry Regiment Captain Cleveland Winslow
10th New York Infantry Regiment Colonel Walter W. McChesney (to 9/1)
Colonel John E. Bendix
to 2 Corps, 3 Div. 3 Brig. 
Division Artillery
1st United States Artillery, Batteries E&G Lieutenant Alanson M. Randol from Reserve Art., 2nd Brig.
3rd United States Artillery, Batteries L&M
5th United States Artillery, Battery I Captain Stephen H. Weed
5th United States Artillery, Battery K Lieutenant W. E. Van Reed from Reserve Art., 2nd Brig.

Third Division

Brigadier General Andrew A. Humphreys
First Brigade Brig. Gen. E. B. Tyler
91st Pennsylvania Infantry Regiment Colonel Edgar M. Gregory
126th Pennsylvania Infantry Regiment Colonel James G. Elder
129th Pennsylvania Infantry Regiment Colonel Jacob G. Frick
134th Pennsylvania Infantry Regiment Colonel Matthew S. Quay
Second Brigade Colonel P. H. Allabach
123rd Pennsylvania Infantry Regiment Colonel John B. Clark
131st Pennsylvania Infantry Regiment Lieutenant Colonel William B. Shaut
133rd Pennsylvania Infantry Regiment Colonel Franklin B. Speakman
155th Pennsylvania Infantry Regiment Colonel Edward J. Allen
Division Artillery
1st New York Artilery, Battery C
1st Ohio Artillery, Battery L

Artillery Reserve

First Brigade Horse Artillery
2nd United States Artillery, Battery A  to Cavalry Division
2nd United States Artillery, Batteries B&L
2nd United States Artillery, Battery M
3rd United States Artillery, Batteries C&G
Second Brigade 
1st United States Artillery, Battery E to 2 Div. Artillery
1st United States Artillery, Battery G to 2 Div. Artillery
1st United States Artillery, Battery K
4th United States Artillery, Battery G to Corps Reserve Artillery
5th United States Artillery, Battery A to 9 Corps, 3 Div. Artillery
5th United States Artillery, Battery K to 2 Div. Artillery
Third Brigade 
1st New York Artillery Bn., Battery A Captain Thomas H. Bates to 5 Corps Reserve Artilery
1st New York Artillery Bn., Battery B Captain Rufus T. Pettit
1st New York Artillery Bn., Battery C
1st New York Artillery Bn., Battery D Captain Thomas W. Osborn
Fourth Brigade
Maryland Artillery, Battery A to 6 Corps, 1 Div. Artillery
Maryland Artillery, Battery B to 6 Corps, 2 Div. Artillery
Fifith Brigade
2nd United States Artillery, Battery E to 9 Corps, 1 Div. Artillery
3rd United States Artillery, Batteries F&K to 3 Corps, 1 Div. Artillery
Unattached
5th New York Independent Battery to 5 Corps Reserve Artillery