Ball's Bluff Union order of battle

The following Union Army units and commanders fought in the Battle of Ball's Bluff of the American Civil War, fought from October 20 to October 24, 1861 in Loudoun County, Virginia, also known as the Battle of Leesburg or the Battle of Harrison's Island. 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
• Cpt = Captain
• Lt = Lieutenant
• Bvt = Brevet Rank

Other

• w = wounded
• mw = mortally wounded
• k = killed

Union Forces Around Ball’s Bluff and Edwards’ Ferry

BG Charles Pomeroy Stone

Army of the Potomac

MG George B. McClellan (not present)

Division	Brigade	Regiments and Others
Stones' Division (Corps of Observation)      BG Charles Pomeroy Stone	First Brigade    BG Frederick W. Lander	1st Company Massachusetts Sharpshooters: Cpt John Saunders 7th Michigan Infantry: Col Ira Grosvenor 19th Massachusetts Infantry: Col Edward Hinks 20th Massachusetts Infantry: Col William Raymond Lee
	Second Brigade    BG Willis A. Gorman	1st Minnesota Infantry: Col Napoleon J.T. Dana 2nd New York State Militia: Col George W.B. Tompkins 34th New York Infantry: Col William LeDew
	Third Brigade    Col Edward D. Baker (k)	1st California Infantry: Ltc Isaac J. Wistar 2nd California Infantry: Col Joshua T. Owen 3rd California Infantry: Col DeWitt C. Baxter 5th California Infantry: Col Turner G. Morehead
	Unassigned Regiments	15th Massachusetts Infantry: Col Charles Devens (w) 42nd New York Infantry (Tammany Jackson Guard): Col Milton Cogswell
	Cavalry	3rd New York Cavalry (B, D, E, and I companies): Col James Henry Van Alen Putnam Rangers, D.C. Volunteer Cavalry: Cpt George Thistleton
	Artillery	1st U.S. Artillery, Battery I: Lt George A. Woodruff 1st Rhode Island Light Artillery, Battery B: Cpt Thomas F. Vaughn 2nd New York State Militia Artillery Detachment 6th New York Independent Battery: Cpt Thomas B. Bunting