United States Army > Army of the Potomac


< to July • August 1862 • to September >

Commanded by Major General Samuel P. Heintzelman

The Third Corps had no First Division from May until August 5th of 1862, when the Third Division was redesignated as the First Division.

Second Division

Brigadier General Joseph Hooker
First Brigade Brigadier General Cuvier Grover
2nd New Hampshire Infantry Regiment Colonel Gilman Marston
1st Massachusetts Infantry Regiment Colonel Robert Cowdin
11th Massachusetts Infantry Regiment Colonel William Blaisdell
16th Massachusetts Infantry Regiment Major Gardner Banks
26th Pennsylvania Infantry Regiment Major Casper M. Berry
Second Brigade Colonel Nelson Taylor
70th New York Infantry Regiment Captain Charles L. Young
71st New York Infantry Regiment Captain Owen Murphy
72nd New York Infantry Regiment Captain Harman J. Bliss
73rd New York Infantry Regiment Captain Michael W. Burns
74th New York Infantry Regiment Major Edward L. Price
Third Brigade  Brigadier General Francis E. Patterson
5th New Jersey Infantry Regiment Lt. Colonel William J. Sewell
6th New Jersey Infantry Regiment Colonel Gershom Mott (w 8/29)
Lieutenant Colonel George C. Burling
7th New Jersey Infantry Regiment Colonel Joseph W. Revere
8th New Jersey Infantry Regiment Lieutenant Colonel William Ward (w)
Captain John Tuite (k)
Captain George Hoffman (w)
Captain O. S. Johnson
Captain Daniel Blauvelt, Jr.
2nd New York Infantry Regiment Captain Sidney W. Park
115th Pennsylvania Infantry Regiment Lieutenant Colonel Robert Thompson
Division Artillery
1st New Jersey Artillery, Battery B from Corps Artillery (below)
4th New York Independent Battery
1st United States Artillery, Battery H
4th United States Artillery, Battery K from Corps Artillery (below)

Third Division

(redesignated First Division 8/5)

Brigadier General P. Kearney
First Brigade Brigadier General John C. Robinson
20th Indiana Infantry Regiment Colonel William L. Brown
87th New York Infantry Regiment Colonel Stephen A. Dodge
57th Pennsylvania Infantry Regiment Colonel Charles T. Campbell to 2nd Brig. (below)
63rd Pennsylvania Infantry Regiment Colonel Alexander Hays
105th Pennsylvania Infantry Regiment Colonel William W. Corbet
Second Brigade Brigadier General David Birney
3rd Maine Infantry Regiment Colonel Henry G. Staples
4th Maine Infantry Regiment Colonel Elijah Walker
1st New York Infantry Regiment Colonel Garrett W. Dyckman
38th New York Infantry Regiment Colonel John H.H. Ward
40th New York Infantry Regiment Colonel Thomas W. Egan
101st New York Infantry Regiment Colonel George F. Chester
57th Pennsylvania Infantry Regiment Colonel Charles T. Campbell from 1st Brig. (above)
Third Brigade Colonel Orlando Poe
2nd Michigan Infantry Regiment
3rd Michigan Infantry Regiment Colonel Stephen Champlin
5th Michigan Infantry Regiment Colonel Henry D. Terry
37th New York Infantry Regiment Colonel Samuel B. Hayman
99th Pennsylvania Infantry Regiment Colonel Asher Leidy
Division Artillery
1st Rhode Island Artilery, Battery E
2nd United States Artillery, Battery G to 1st Div., 4 Corps 8/16

Corps Artillery

1st New Jersey Artillery, Battery B to 3rd Div. Artillery (above)
1st New York Artillery, Battery D
4th New York Independent Battery
6th New York Independent Battery
4th United States Artillery, Battery K to 2nd Div. Artillery (above)