Second Bull Run Union order of battle
Division Brigade Regiments and Others
First Division MG Philip Kearny 1st Brigade BG John C. Robinson 20th Indiana : Col William L. Brown ( k ) , Maj John Wheeler 30th Ohio Infantry ( 6 cos. ) , Lt. Col. Theodore Jones 63rd Pennsylvania : Col Alexander Hays ( w ) , Cpt James F. Ryan ( w ) 105th Pennsylvania : Ltc Calvin A. Craig ( w ) , Maj Jacob W. Greenwalt
First Division MG Philip Kearny 2nd Brigade BG David B. Birney 3rd Maine : Cpt Moses B. Lakeman , Maj Edwin Burt 4th Maine : Col Elijah Walker 1st New York : Maj Edwin Burt , Cpt Joseph Yeamans 38th New York : Col J. H. Hobart Ward 40th New York : Col Thomas W. Egan 101st New York : Ltc Nelson A. Gesner 57th Pennsylvania : Maj William Birney
First Division MG Philip Kearny 3rd Brigade Col Orlando Poe 2nd Michigan : Ltc Louis Dillman 3rd Michigan : Col Stephen G. Champlin ( w ) , Maj Byron R. Pierce 5th Michigan : Cpt William Wakenshaw 37th New York : Col Samuel B. Hayman 99th Pennsylvania : Col Asher S. Leidy
First Division MG Philip Kearny Artillery 1st Rhode Island Light , Battery E : Cpt George E. Randolph 1st United States , Battery K : Cpt William M. Graham
Second Division MG Joseph Hooker 1st Brigade BG Cuvier Grover 1st Massachusetts : Col Robert Cowdin 11th Massachusetts : Col William E. Blaisdell 16th Massachusetts : Maj Gardner Banks 2nd New Hampshire : Col Gilman Marston 26th Pennsylvania : Maj Robert L. Bodine
Second Division MG Joseph Hooker 2nd Brigade Col Nelson Taylor 70th New York : Cpt Charles L. Young 71st New York : Cpt Owen Murphy 72nd New York : Cpt Harman J. Bliss 73rd New York : Cpt M. William Burns 74th New York : Maj Edward L. Price
Second Division MG Joseph Hooker 3rd Brigade Col Joseph B. Carr 5th New Jersey : Ltc William J. Sewell 6th New Jersey : Col Gershom Mott ( w ) , Ltc George C. Burling 7th New Jersey : Col Joseph W. Revere 8th New Jersey : Ltc William Ward ( w ) , Cpt John Tuite ( k ) , Cpt George Hoffman , Cpt Oliver S. Johnson , Cpt Daniel Blauvelt , Jr. 2nd New York : Cpt Sidney W. Park 115th Pennsylvania : Ltc Robert Thompson
Union forces -- Army of the Potomac
MG Samuel P. Heintzelman
The following Union Army units and commanders fought in the Second Battle of Bull Run of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the army organization during the battle, the casualty returns and the reports.