| Army of the Potomac | MG George McClellan |  |
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| XII Corps | MG Joseph Mansfield Mortally wounded |
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| XII Corps 1st Division | BG Alpheus Williams Promoted to Corps command |
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| XII Corps 1st Division | Brigade 1 | BG Samuel Crawford Promoted to Division command. Wounded |
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| 10ME | Col George Beal | ||
| 28NY | Capt William Mapes | ||
| 46PA |
Col Joseph Knipe |  | |
| 124PA | Col Joseph Hawley | ||
| 125PA | Col Jacob Higgins | ||
| 128PA | Col Samuel Crossdale | ||
| XII Corps 1st Division | Brigade 3 | BG George Gordon Promoted to Division command |
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| 27IN | Col Silas Colgrove | ||
| 2MA | Col George Andrews | ||
| 13NJ | Col Ezra Carman | ||
| 107NY | Col R. B. van Valkenburgh | ||
| 3WI |
Col Thomas Ruger |  | |
| XII Corps 1st Division | Artillery | Capt Clermont Best | Picture needed |
| 4ME | Capt O'Neil Robinson | ||
| F-4US | Lt E. D. Muhlenberg | ||
| M-1NY | Capt George Cothran | ||
| E-PA | Capt Joseph Knapp | ||
| 6ME | Capt Freeman McGilvery | ||
| F-PA | Capt R B Hampton | ||
| 10NY | Capt John Bruen | ||
| XII Corps 2nd Division | BG George Greene |  |
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| XII Corps 2nd Division | Brigade 1 | LC Hector Tyndale Wounded |
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| 5OH | Maj John Collins | ||
| 7OH | Maj Orrin Crane Promoted to Brigade command | Picture needed | |
| 66OH | LC Eugene Powell | ||
| 28PA | Maj Areo Pardee | ||
| XII Corps 2nd Division | Brigade 2 | Col Henry Stainbrook | Picture needed |
| 3MD |
LC Joseph Sudsburg |
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| 102NY | LC James Lane | ||
| 111PA | Maj Thomas Walker | ||
| XII Corps 2nd Division | Brigade 3 | Col William Goodrich Killed |
Picture needed |
| 3DL | Maj Arthur Maginnis | ||
| 60NY | LC Charles Brundage | ||
| 78NY | LC Jonathan Austin Promoted to Brigade command | Picture needed | |
| PURNELL | LC Benjamin Simpson | ||
| Reserve | Artillery | LC William Hays |  |
| G-4US | Lt Marcus Miller | ||
| C-1NY | Capt Robert Langner | ||
| 5NY | Capt Elijah D Taft | ||
| K-1US | Capt William Graham | ||
| A-1NY | Lt Bernhard Wever | ||
| B-1NY | Lt Alfred vonKleiser | ||
| D-1NY | Capt Charles Kusserow | ||
| 93NY | LC Benjamin C Butler | ||
| Cavalry | BG Alfred Pleasonton |  |
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| Cavalry | Brigade 1 | Maj Charles Whiting |  |
| 5US | Capt Joseph McArthur | ||
| 6US | Capt William Sanders | ||
| Cavalry | Brigade 2 | Col John Farnsworth |  |
| 8IL | Maj William Medill | ||
| 3IN | Maj George Chapman | ||
| 1MA | Capt Casper Crowninshield | ||
| 8PA | Capt Peter Keenan | ||
| Cavalry | Brigade 3 | Col Richard Rush |  |
| 4PA | Col James Childs | ||
| 6PA | LC C Ross Smith | ||
| Cavalry | Brigade 4 | Col Andrew McReynolds |  |
| 1NY | Maj Alonzo Adams | ||
| 12PA | Maj James Congdon | ||
| Cavalry | Brigade 5 | Col Benjamin Davis | Picture needed |
| 3PA | LC Samuel Owen | ||
| 8NY | (Col B Davis) | ||
| Cavalry | Artillery | ||
| C-3US | Capt Horatio Gibson | ||
| A-2US | Capt John Tdiball | ||
| B-2US | Capt James Robertson | ||
| M-2US | Lt Peter Haines |