United States Army > Army of the Potomac
March 1862 • to April >
Commanded by Brigadier General Samuel P. Heintzelman
The Third Corps was created on March 3, 1862 and announced March 13, 1862.
First Division |
Brigadier General Fitz John Porter | |
| First Brigade | Brigadier General J. H. Martindale | |
| 2nd Maine Infantry Regiment | Colonel Charles W. Roberts | |
| 18th Massachusetts Infantry Regiment | Colonel James Barnes | |
| 22nd Massachusetts Infantry Regiment | Colonel Jesse A. Grove | |
| 13th New York Infantry Regiment | Colonel John Pickell (res. 3/31) | |
| 25th New York Infantry Regiment | Colonel Charles A. Johnson | |
| Second Brigade | Brigadier General G. W. Morrell | |
| 9th Massachusetts Infantry Regiment | Colonel Thomas Cass | |
| 4th Michigan Infantry Regiment | Colonel Dwight A. Woodbury | |
| 14th New York Infantry Regiment | Colonel James McQuade | |
| 62nd Pennsylvania Infantry Regiment | Colonel Samuel W. Black | |
| Third Brigade | Brigadier General D. Butterfield | |
| 16th Michigan Infantry Regiment | Colonel Thomas Stockton | |
| 12th New York Infantry Regiment | Colonel Henry A. Weeks | from Wadsworth’s Brig. McDowell’s Div. 3/13 |
| 17th New York Infantry Regiment | Colonel H. Seymour Lansing | |
| 25th New York Infantry Regiment | Colonel James E. Kerrigan | |
| 44th New York Infantry Regiment | Colonel Stephen W. Stryker | |
| 83rd Pennsylvania Infantry Regiment | Colonel John W. McLane | |
| Sharpshooters | ||
| 1st United States Sharpshooters | Colonel Hiram Berdan | |
| Division Artillery | ||
| 3rd Massachusetts Battery | ||
| 5th Massachusetts Battery | ||
Second Division |
Brigadier General Joseph Hooker | |
| First Brigade | Brigadier General Henry M. Naglee (to 4/27) 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 | |
| 1st Michigan Infantry Regiment | Colonel John C. Robertson | |
| 26th Pennsylvania Infantry Regiment | Colonel William F. Small | |
| Second Brigade | Brigadier General Daniel E. Sickles | |
| 70th New York Infantry Regiment | Colonel William Dwight | |
| 71st New York Infantry Regiment | Colonel George B. Hall | |
| 72nd New York Infantry Regiment | Colonel Nelson Taylor | |
| 73rd New York Infantry Regiment | Colonel William R. Brewster | |
| 74th New York Infantry Regiment | Colonel Charles K. Graham | |
| Third Brigade | Colonel Samuel H. Starr | |
| 5th New Jersey Infantry Regiment | Colonel Samuel H. Starr | |
| 6th New Jersey Infantry Regiment | Colonel James Hatfield (res. 4/27) | |
| 7th New Jersey Infantry Regiment | Colonel Joseph W. Revere | |
| 8th New Jersey Infantry Regiment | Colonel Adolphus J. Johnson | |
| Division Artillery | ||
| 1st New York Artillery, Battery D | Captain Thomas W. Osborn | |
| 4th New York Independent Battery | Captain James E. Smith | |
| 6th New York Independent Battery | Captain Walter M. Bramhall | |
| 1st United States Artillery, Battery H | Captain Charles H. Weber | |
Third Division |
Brigadier General C. S. Hamilton (to 4/30) Brigadier General P. Kearney |
|
| First Brigade | Brigadier General Charles D. Jameson | |
| 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 | |
| Second Brigade | Brigadier General David Birney | |
| 3rd Maine Infantry Regiment | Colonel Henry G. Staples | |
| 4th Maine Infantry Regiment | Colonel Hiram Berry (to BG 3/17) Colonel Elijah Walker |
|
| 38th New York Infantry Regiment | Colonel John H.H. Ward | |
| 40th New York Infantry Regiment | Colonel Edward J. Riley | |
| 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 | |
| 37th New York Infantry Regiment | Colonel Samuel B. Hayman | |
| Division Artillery | ||
| 1st Rhode Island Artilery, Battery E | ||
| 1st New Jersey Artillery, Battery B | ||
| 2nd United States Artillery, Battery G | ||
Corps Artillery |
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| 1st Rhode Island Artillery, Battery E | ||
| 1st New Jersey Artillery, Battery B | ||
| 2nd United States Artillery, Battery G | ||
Cavalry |
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| 3rd Pennsylvania Cavalry Regiment | Colonel William W. Averill | from Porter’s Div. |