2nd Ohio Infantry Regiment

Timeline

	Organized at Columbus, Ohio
April 18, 1861	Mustered in under Colonel Lewis Wilson
April 19	Ordered to Washington, D.C. and duty in the defenses of that city
June	Attached to Schenck's Brigade, Tyler's Division, McDowell's Army of Northeast Virginia
July 16-21	Advance on Manassas, Va.
July 17	Occupation of Fairfax Court House
July 21	Battle of Bull Run Commanded by Lieutenant Colonel Mason.
July 31, 1861	Mustered out

	Reorganized for three years service in the fall, and served in the westrn theater.