The following United States Army units and commanders fought in the Battle of McDowell of the American Civil War. The Confederate order of battle is listed separately.
Abbreviations used Military rank MG = Major General BG = Brigadier General Col = Colonel Ltc = Lieutenant Colonel Maj = Major Cpt = Captain
Mountain Department MG John C. Frémont (not present)
Union Forces Around McDowell BG Robert H. Milroy BG Robert C. Schenck
Brigades Regiments and OthersMilroy's Brigade
BG Robert H. Milroy 25th Ohio Infantry: Col James A. Jones 32nd Ohio Infantry: Col Thomas H. Ford 73rd Ohio Infantry: Col Orland Smith 75th Ohio Infantry: Col Nathaniel McLean 2nd West Virginia Infantry: Col John W. Moss 3rd West Virginia Infantry: Col David T. Hewes Battery I, 1st Ohio Artillery: Cpt Henry F. Hyman 12th Ohio Battery: Cpt Aaron Johnson 1st West Virginia Cavalry: Col Henry AnisanselSchenck's Brigade
BG Robert C. Schenck 82nd Ohio Infantry: Col James Cantwell 5th West Virginia Infantry: Col John L. Ziegler 55th Ohio Infantry: Col John C. Lee 1st Battalion, Connecticut Cavalry: Col Brayton Ives Battery K, 1st Ohio Artillery: Cpt William L. DeBeck
References May 8, 1862 - Engagement Near McDowell (Bull Pasture Mountain), Va. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies. United States War Department. Volume XII, Chapter XXIV, pp. 460–488. (1885)