Oliver O. Howard
The regiment rendezvoused at Burlington, and was mustered into United States service on June 20. Four days later, the regiment left for Washington, D.C., arriving on June 26. It was initially brigaded with three Maine regiments under command of Colonel Oliver O. Howard. On July 21, the brigade participated in the First Battle of Bull Run. The regiment suffered 68 casualties: 2 killed, 35 wounded and 31 missing.