# Battle of Chaffin's Farm order of battle: Union

The following Union Army units and commanders fought in the Battle of Chaffin's Farm of the American Civil War. The Confederate order of battle is shown separately.

## Abbreviations used
### Military rank

* MG = Major General
* BG = Brigadier General
* Col = Colonel
* Ltc = Lieutenant Colonel
* Maj = Major

### Other

* w = wounded
* k = killed

## Army of the James

MG Benjamin F. Butler
* Chief of Engineers: Brevet MG Godfrey Weitzel

### X Corps

MG David B. Birney
| Division | Brigade | Regiments and Others |
| First Division   BG Alfred H. Terry | 1st Brigade   Col Francis B. Pond (w) Col Thomas Mulcahy Ltc Alvin C. Voris | 39th Illinois 62nd Ohio 67th Ohio: Ltc Alvin C. Voris 85th Pennsylvania |
| First Division   BG Alfred H. Terry | 2nd Brigade   Col Joseph C. Abbott | 6th Connecticut 7th Connecticut 3rd New Hampshire 7th New Hampshire 16th New York Heavy Artillery |
| First Division   BG Alfred H. Terry | 3rd Brigade   Col Harris M. Plaisted | 10th Connecticut 11th Maine 1st Maryland Cavalry 27th Massachusetts 100th New York |
| Second Division   BG Robert Sanford Foster | 1st Brigade   Col Rufus Daggett (w) Ltc Albert M. Barney | 3rd New York 112th New York 117th New York 142nd New York: Ltc Albert M. Barney |
| Second Division   BG Robert Sanford Foster | 2nd Brigade   Col Galusha Pennypacker | 47th New York 48th New York 76th Pennsylvania 97th Pennsylvania 203rd Pennsylvania |
| Second Division   BG Robert Sanford Foster | 3rd Brigade   Col Louis Bell | 13th Indiana 9th Maine 4th New Hampshire 115th New York 169th New York |
| Third Division   (incomplete) | 1st Brigade   BG William Birney | 29th Connecticut (Colored) 7th U.S. Colored Troops: Col James Shaw 8th U.S. Colored Troops: Maj George Wagner 9th U.S. Colored Troops: Cpt Edward Babcock 45th U.S. Colored Troops |
| Artillery | Artillery Brigade   Col Richard H. Jackson | 1st Battery, Connecticut Light Artillery 4th Battery, New Jersey Light Artillery 5th Battery, New Jersey Light Artillery 1st Pennsylvania Light Artillery, Battery E 3rd Rhode Island Heavy Artillery, Battery C 1st U.S. Artillery, Batteries C and D 1st U.S. Artillery, Battery M 3rd U.S. Artillery, Battery E 4th U.S. Artillery, Battery D |

### XVIII Corps

MG Edward O. C. Ord (w) September 29 BG Charles A. Heckman Brevet MG Godfrey Weitzel
| Division | Brigade | Regiments and Others |
| First Division   BG George J. Stannard (w)  Colonel Edgar M. Cullen  Colonel James Jourdan | 1st Brigade   Col Aaron Fletcher Stevens (w) Ltc Thomas Mulcahy temp Sept 29 Ltc John B. Raulston | 13th New Hampshire: Ltc Jacob J. Storer 81st New York: Ltc John B. Raulston 98th New York: Ltc William Kreutzer 139th New York: Ltc Thomas Mulcahy |
| First Division   BG George J. Stannard (w)  Colonel Edgar M. Cullen  Colonel James Jourdan | 2nd Brigade   BG Hiram Burnham (k) Col Michael Donohoe (w) Ltc Stephen Moffitt temp 29 Sept Col Edgar M. Cullen | 8th Connecticut: Ltc Martin B. Smith 10th New Hampshire: Col Michael Donohoe 96th New York: Col Edgar M. Cullen, Ltc Stephen Moffitt 118th New York: Col George F. Nichols |
| First Division   BG George J. Stannard (w)  Colonel Edgar M. Cullen  Colonel James Jourdan | 3rd Brigade   Col Samuel H. Roberts (w) Ltc Stephen H. Moffitt | 21st Connecticut: Capt James F. Brown 92nd New York 58th Pennsylvania 188th Pennsylvania: Maj Francis H. Reichard |
| Second Division   BG Charles A. Heckman Col Harrison S. Fairchild BG Charles A. Heckman | 1st Brigade   Col James Jourdan Col George M. Guion | 148th New York: Col George M. Guion 158th New York: Col James Jourdan 55th Pennsylvania |
| Second Division   BG Charles A. Heckman Col Harrison S. Fairchild BG Charles A. Heckman | 2nd Brigade   Col Edward H. Ripley | 8th Maine 9th Vermont |
| Second Division   BG Charles A. Heckman Col Harrison S. Fairchild BG Charles A. Heckman | 3rd Brigade   Col Harrison S. Fairchild | 89th New York: Maj Wellington M. Lewis 2nd Pennsylvania Heavy Artillery: Col James L. Anderson (k) |
| Third Division   BG Charles J. Paine | 1st Brigade   Col John Henry Holman | 1st U.S.C.T. 22nd U.S.C.T. 37th U.S.C.T. |
| Third Division   BG Charles J. Paine | 2nd Brigade   Col Alonzo G. Draper | 5th U.S.C.T. 36th U.S.C.T. 38th U.S.C.T. |
| Third Division   BG Charles J. Paine | 3rd Brigade   Col Samuel A. Duncan (w) Col John W. Ames | 4th U.S.C.T. 6th U.S.C.T. |
| Third Division   BG Charles J. Paine | Unattached | U.S. Sharpshooters |
| Artillery | Artillery Brigade   Maj George B. Cook | 2nd New York Light Artillery, Battery H 3rd New York Light Artillery, Battery E 3rd New York Light Artillery, Battery K 3rd New York Light Artillery, Battery M 7th Battery, New York Light Artillery 16th Battery, New York Light Artillery 17th Battery, New York Light Artillery 1st Pennsylvania Light Artillery, Battery A 1st Rhode Island Light Artillery, Battery F 1st U.S. Artillery, Battery B 4th U.S. Artillery, Battery L 5th U.S. Artillery, Battery A 5th U.S. Artillery, Battery F |
| Bermuda Hundred | Provisional Brigade   Col Joseph H. Potter | 11th Connecticut Infantry 40th Massachusetts Infantry 12th New Hampshire Infantry 206th Pennsylvania Infantry 207th Pennsylvania Infantry 208th Pennsylvania Infantry 209th Pennsylvania Infantry 211th Pennsylvania Infantry |

### Cavalry

| Division | Brigade | Regiments and Others |
| Cavalry Division   BG August V. Kautz | 1st Brigade   Col Robert M. West | 2nd New York Cavalry 5th Pennsylvania Cavalry |
| Cavalry Division   BG August V. Kautz | 2nd Brigade   Col Samuel P. Spear | 1st D.C. Cavalry 11th Pennsylvania Cavalry |
| Cavalry Division   BG August V. Kautz | Artillery | 4th Battery, Wisconsin Light Artillery |