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.^[1]

Abbreviations used

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^[2] 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^[3] 2nd United States, Batteries B and L: Lt Edward Heaton^[4] 4th United States, Battery E: Lt Samuel S. Elder^[5]

Division	Brigade	Regiments and Others
Second Division Col Alfred N. Duffié	1st Brigade Col Louis 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^[6] 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^[7] BG David A. Russell	2nd Wisconsin (2 companies)^[8] 7th Wisconsin: Col William Robinson 56th Pennsylvania: Col John William Hofmann 81st Pennsylvania^[9] 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

^ The Battle of Brandy Station - Order of Battle
^ 86th and 124th New York belonged to the Third Corps, 2nd Massachusetts and 3rd Wisconsin to the Twelfth Corps and the 33rd Massachusetts to the Eleventh Corps
^ Served with Second Brigade
^ Served with First Brigade
^ Served with Reserve Brigade
^ In reserve at Mount Holly Church - no saddles
^ The 56th Pennsylvania and the 2nd and 7th Wisconsin belonged to the First Corps, the 6th Maine and 119th Pennsylvania to the Sixth Corps and the 5th New Hampshire and 81st Pennsylvania to the Second Corps
^ Attached to 7th Wisconsin
^ Attached to 5th New Hampshire

The Battle of Brandy Station
U.S. War Department, The War of the Rebellion: a Compilation of the Official Records of the Union and Confederate Armies. Washington, DC: U.S. Government Printing Office, 1880–1901.