United States Regiments & Batteries > Ohio

April 14 –
April 29
Organized at large in the State of Ohio
April 17 Mustered in for three months service under Colonel Alexander M. McCook
April 19 Moved to Washington, D.C. and duty in the defenses of that city attached to the Department of Washington
June Attached to Schenck’s Brigade, Tyler’s Division, McDowell’s Army of Northeast Virginia.
June 17 & July 9 Actions at Vienna, Va.
July 16-21 McDowell’s advance on Manassas, Va.
July 17 Occupation of Fairfax Court House, Va.
July 21
Battle of Bull Run

Covered the retreat to Washington.

August 2 Ordered to Ohio and mustered out, expiration of term.
Fall The regiment was reorganized for three years service in the fall of 1861, serving in the western theater.