United States Army > Army of the Potomac
< to June • July 1862 • to August >
Commanded by Major General Samuel P. Heintzelman
The Third Corps had no First Division from May until August of 1862
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 | Colonel Thomas R. Tannatt | |
| 26th Pennsylvania Infantry Regiment | Major Casper M. Berry | |
| Second Brigade | Brigadier General Daniel Sickles (to 7/16) Colonel Nelson Taylor |
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| 70th New York Infantry Regiment | Major Thomas Holt | |
| 71st New York Infantry Regiment | Colonel George B. Hall | |
| 72nd New York Infantry Regiment | Colonel Nelson Taylor (to 7/16) Lt. Colonel Israel Moses |
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| 73rd New York Infantry Regiment | Colonel William R. Brewster | |
| 74th New York Infantry Regiment | Lt. Colonel Charles H. Butis | |
| Third Brigade | Brigadier General Francis E. Patterson | |
| 5th New Jersey Infantry Regiment | Colonel Samuel Starr | |
| 6th New Jersey Infantry Regiment | Colonel Gersham Mott | |
| 7th New Jersey Infantry Regiment | Colonel Joseph W. Revere | |
| 8th New Jersey Infantry Regiment | Colonel Adolphus Johnston | |
| 2nd New York Infantry Regiment | Colonel Joseph B. Carr | |
| 115th Pennsylvania Infantry Regiment | Colonel Robert E. Patterson | |
| Division Artillery | ||
| 1st New York Artillery, Battery D | Captain Thomas W. Osborn | to 3rd Corps Artillery |
Third Division |
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 | |
| 63rd Pennsylvania Infantry Regiment | Colonel Alexander Hays | |
| 105th Pennsylvania Infantry Regiment | Colonel Amor A. McKnight (res. 7/29) Colonel William W. Corbet |
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| Second Brigade | Brigadier General David Birney |
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| 1st New York Infantry Regiment | Colonel Garrett W. Dyckman | from 3 Brig. (below) |
| 3rd Maine Infantry Regiment | Colonel Henry G. Staples | |
| 4th Maine Infantry Regiment | Colonel Elijah Walker | |
| 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 Enrico Fardella (dis. 7/8) Colonel George F. Chester |
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| Third Brigade | Brigadier General Hiram Berry | |
| 2nd Michigan Infantry Regiment | Colonel Orlando M. Poe | |
| 3rd Michigan Infantry Regiment | Colonel Stephen Champlin | |
| 5th Michigan Infantry Regiment | Colonel Henry D. Terry | |
| 1st New York Infantry Regiment | Colonel Garrett W. Dyckman | to 2 Brig. (above) |
| 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 | ||
Artillery |
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| 1st New Jersey Artillery, Battery B | ||
| 1st New York Artillery, Battery D | from 2 Div. (above) | |
| 4th New York Independent Battery | ||
| 6th New York Independent Battery | ||
| 4th United States Artillery, Battery K | ||
Cavalry |
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| 3rd Pennsylvania Cavalry Regiment | Colonel William W. Averill | to Cavalry Div., 1 Brig. |