Commanded by Major General Henry W. Slocum
| First Brigade | Colonel Alfred T. A. Torbert | |
| 1st New Jersey Infantry Regiment | Lieutenant Colonel Mark W. Collet | |
| 2nd New Jersey Infantry Regiment | Colonel Samuel L. Buck | |
| 3rd New Jersey Infantry Regiment | Colonel Henry W. Brown | |
| 4th New Jersey Infantry Regiment | Colonel William B. Hatch | |
| Second Brigade | Colonel Joseph J. Bartlett | |
| 5th Maine Infantry Regiment | Colonel Nathaniel J. Jackson | |
| 16th New York Infantry Regiment | Lieutenant Colonel Joel J. Seaver | |
| 27th New York Infantry Regiment | Lieutenant Colonel Alexander D. Adams | |
| 96th Pennsylvania Infantry Regiment | Colonel Henry L. Cake | |
| Third Brigade | Brigadier General John Newton | |
| 18th New York Infantry Regiment | Lieutenant Colonel George R. Myers | |
| 31st New York Infantry Regiment | Lieutenant Colonel Francis H. Pinto (1) | |
| 32nd New York Infantry Regiment | Captain Charles Hubbs (1) | |
| 95th Pennsylvania Infantry Regiment | Colonel Gustavus W. Town | |
| Artillery | Captain Emory Upton | |
| Battery A, Maryland Light Artillery | Captain John W. Wolcott | |
| Battery A, 1st Massachusetts Light Artillery | Captain. Josiah Porter | |
| Battery A, 1st New Jersey Light Artillery | Captain William Hexamer | |
| Battery D, 2nd United States Artillery | Lieutenant Edward B. Williston |
Key:
(k) = killed, (w) = wounded, (mw) = mortally wounded, (c) = captured
Links for regiments, batteries, companies, and individuals go to unit histories or biographies on www.civilwarintheeast.com
Notes:
(1) At Crampton’s Gap Lieutenant Colonel Francis H. Pinto of the 32nd New York temporarily took command of the 31st New York, which had lost all its field officers. The 32nd’s Colonel Roderick Matheson and Major George F. Lemon were both mortally wounded there. Lieutenant Colonel Pinto then took command of the combined regiments through Antietam.
