IA 12th Inf Co G. Residence: Decorah, Winneshiek County, Iowa. Born in Telemark, Norway. Civil War: Age 25. Enlisted 9 Oct 1861. Mustered 5 Nov 1861. Private. Missing 6 Apr 1862 in the Battle of Shiloh, Tennessee. Found to have been taken prisoner. Re-enlisted & re-mustered 5 Jan 1864. Promoted Corporal 22 Jan 1864. Mustered out 20 Jan 1866, Memphis, Tennessee. Post war: He settled in New Mexico. Was living there in 1907. Sources: (ISW-II p478) (DGA) (Ulvestad p296) “Johnson, Halvor”