MN 4th Inf Co H. Residence: Nicollet County, Minnesota. Born “Peter Gilbert Petersen” in Norway. Civil War: Age 21 (or 23). Enrolled 27 Sep 1861. Mustered 20 December 1861. Private. Re-enlisted 1 Jan 1864. Promoted to Corporal. Discharged from the service with his regiment, 19 Jul 1865. Sources: (MINN p211) (MCIW p236) (Ulvestad p263)