Chantilly Union order of battle

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

1 Military Rank Abbreviations Used
2 Army of Virginia
- 2.1 III Corps
- 2.2 IX Corps
3 Source

Military Rank Abbreviations Used

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

Army of Virginia

III Corps

(detached from the Army of the Potomac)
MG Samuel P. Heintzelman

Division	Brigade	Regiments and Others
First Division MG Philip Kearny (killed) BG David B. Birney	1st Brigade BG John C. Robinson	20th Indiana 63rd Pennsylvania 105th Pennsylvania
	2nd Brigade BG David B. Birney	3rd Maine 4th Maine 1st New York 38th New York 40th New York Col Thomas W. Egan 101st New York 57th Pennsylvania
	3rd Brigade Col Orlando M. Poe	2nd Michigan 3rd Michigan 5th Michigan 37th New York 99th Pennsylvania
	Artillery	Battery E, 1st Rhode Island Artillery Battery K, 1st U.S. Artillery

IX Corps

(detached from the Army of the Potomac)
MG Jesse L. Reno

Division	Brigade	Regiments and Others
First Division BG Isaac Stevens (killed) Col Benjamin C. Christ	1st Brigade Col Benjamin C. Christ	8th Michigan 50th Pennsylvania
	2nd Brigade Col Daniel Leasure	46th New York (5 companies) 100th Pennsylvania
	3rd Brigade Col Addison Farnsworth	28th Massachusetts 79th New York
Second Division MG Jesse L. Reno	1st Brigade Col James Nagle	2nd Maryland 48th Pennsylvania 6th New Hampshire 9th New Hampshire
Second Division MG Jesse L. Reno	2nd Brigade Col Edward Ferrero	21st Massachusetts Col William S. Clark 51st New York 51st Pennsylvania

Source

Taylor, Paul. He Hath Loosed the Fateful Lightning: The Battle of Ox Hill (Chantilly), September 1, 1862. White Mane Books: Shippensburg, Pa., 2003. ISBN 1-57249-329-1