First Winchester Union Order of Battle

The following United States Army units and commanders fought in the First Battle of Winchester (May 25, 1862) of the American Civil War. The Confederate order of battle is listed separately.

Abbreviations used

Division	Brigade	Regiment or Other
First Division BG Alpheus S. Williams	First Brigade Col Dudley Donnelly	5th Connecticut Infantry - Ltc George D. Chapman 28th New York Infantry - Ltc Edwin Franklin Brown 46th Pennsylvania Infantry - Col Joseph F. Knipe
	Third Brigade Col George Henry Gordon	2nd Massachusetts Infantry - Ltc George L. Andrews 29th Pennsylvania Infantry - Col John K. Murphy (c), Cpt Samuel M. Zulich 27th Indiana Infantry - Col Silas Colgrove 3rd Wisconsin Infantry - Col Thomas H. Ruger
	Cavalry Attachment	1st Michigan Cavalry (5 companies) - Col. Thornton F. Brodhead, Maj. Angelo Paldi.
	Artillery Attachment Cpt Robert B. Hampton	Battery M, 1st New York Light Artillery - Lt James H. Peabody Battery F, Pennsylvania Light Artillery - Lt J. Presley Fleming Battery B, 4th U.S. Light Artillery - Lt Franklin B. Crosby
Attached Independent Units
	Cavalry Brigade BG John P. Hatch	1st Maine Cavalry (5 companies) - Ltc Calvin S. Douty 1st Vermont Cavalry - Col Charles H. Tompkins 5th New York Cavalry - Col Othneil De Forest 1st Maryland Cavalry (5 companies) - Ltc Charles Wetschky
	Various Units	10th Maine Infantry - Col Geo. L. Beal Pennsylvania Zouaves d'Afrique - Cpt Charles H. T. Collis 8th New York Cavalry (5 companies, dismounted) - Ltc Charles R. Babbitt Battery E, Pennsylvania Artillery - Lt Charles A. Atwell