1861
 April Organized at Milwaukee under the command of Colonel John C. Starkweather, Lieutenant Colonel Charles L. Harris and Major David H. Lane.
April 27 Mustered into State service
May 17 Mustered into United States service
June 9 Left State for Harrisburg, Pa.
June Camp at Hagerstown attached to Abercrombie’s 6th Brigade, Negley’s 2nd Division, Patterson’s Army.
June 29-July 1 Moved to Williamsport, Md.
July 2
Action at Falling Waters

The regiment lost two men killed or mortally wounded.

July 3 Moved to Martinsburg
July-August Duty at Charlestown, Harper’s Ferry and guarding fords of the Monocacy River
July 29 Edwards’ Ferry, Md.
August 21 Mustered out
The regiment was reorganized for three years service and served in the west for its entire career