# Battle of Brandy Station order of battle: Union

The following units and commanders fought in the Battle of Brandy Station of the American Civil War on the Union side. The Confederate order of battle is shown separately. Order of battle compiled from the army organization during the battle.

## Abbreviations used
### Military rank

* BG = Brigadier General
* Col = Colonel
* Ltc = Lieutenant Colonel
* Maj = Major
* Cpt = Captain
* Lt = Lieutenant

### Other

* w = wounded
* mw = mortally wounded
* k = killed in action
* c = captured

## Cavalry Corps, Army of the Potomac

BG Alfred Pleasonton

### Right Wing

BG John Buford
| Division | Brigade | Regiments and Others |
| First Division   BG John Buford   Col Thomas C. Devin | 1st Brigade   Col Benjamin F. Davis (k)   Maj William S. McClure | 8th New York: Maj Edmund M. Pope 8th Illinois: Cpt Alpheus Clark (mw), Cpt George A. Forsyth (w) 3rd Indiana (battalion): Maj William S. McClure, Maj Charles Lemmon 9th New York (Five companies): Maj William B. Martin (w), Cpt Conway W. Ayres 3rd West Virginia (Two companies): Cpt Seymour B. Conger |
| First Division   BG John Buford   Col Thomas C. Devin | 2nd Brigade   Col Thomas C. Devin   Col. Josiah H. Kellogg | 6th New York: Maj William E. Beardsley 17th Pennsylvania: Col Josiah H. Kellogg |
| | Reserve Brigade   Maj Charles J. Whiting | 1st United States: Cpt Richard S. C. Lord 2nd United States: Cpt Wesley Merritt 5th United States: Cpt James E. Harrison 6th United States: Cpt George C. Cram 6th Pennsylvania: Maj Robert Morris, Jr. (c), Maj Henry C. Wheelan |
| | Attached Infantry Brigade   BG Adelbert Ames | 86th New York: Maj Jacob H. Lansing 124th New York: Ltc Francis M. Cummins 2nd Massachusetts: Ltc Charles R. Mudge 33rd Massachusetts: Col Adin B. Underwood 3rd Wisconsin: Ltc Martin Flood |
| | Horse Artillery   Cpt James M. Robertson | 1st United States, Battery K: Cpt William M. Graham 2nd United States, Batteries B and L: Lt Edward Heaton 4th United States, Battery E: Lt Samuel S. Elder |

### Left Wing

BG David McM. Gregg
| Division | Brigade | Regiments and Others |
| Second Division   Col Alfred N. Duffié | 1st Brigade   Col Luigi P. Di Cesnola | 1st Massachusetts: Ltc Greely S. Curtis 6th Ohio: Maj William Stedman 1st Rhode Island: Ltc John L. Thompson |
| Second Division   Col Alfred N. Duffié | 2nd Brigade   Col John I. Gregg | 3rd Pennsylvania: Ltc Edward S. Jones 4th Pennsylvania: Ltc William E. Doster 16th Pennsylvania: Cpt John K. Robison 2nd United States Artillery, Battery M: Lt Alexander C. M. Pennington, Jr. |
| Third Division   BG David McM. Gregg | 1st Brigade   Col Judson Kilpatrick | 2nd New York: Ltc Henry E. Davies, Jr. 10th New York: Ltc William Irvine (c), Maj Matthew H. Avery 1st Maine: Col Calvin S. Douty Orton's Company District of Columbia: Cpt William H. Orton |
| Third Division   BG David McM. Gregg | 2nd Brigade   Col Percy Wyndham (w)   Col John P. Taylor | 1st New Jersey: Ltc Virgil Brodrick (k), Maj John H. Shelmire (k), Maj Myron H. Beaumont 1st Pennsylvania: Col John P. Taylor, Ltc David Gardner 1st Maryland: Ltc James M. Deems New York Light Artillery, 6th Battery: Cpt Joseph W. Martin |
| | Attached Infantry Brigade   BG David A. Russell | 2nd Wisconsin (2 companies) 7th Wisconsin: Col William Robinson 56th Pennsylvania: Col John William Hofmann 81st Pennsylvania 119th Pennsylvania: Maj Henry P. Truefitt, Jr. 5th New Hampshire: Col Edward E. Cross 6th Maine: Col Hiram Burnham 3rd United States Artillery, Battery C: Lt William D. Fuller |