Sergeant Noehren was a member of Headquarters and Service Company, 2nd Engineer Combat Battalion, 2nd Infantry Division. He was taken Prisoner of War while fighting the enemy near Kunu-ri, North Korea on November 30, 1950 and died while a prisoner on January 22, 1951. At the time his remains were not recovered. Through the work of the Defense POW/MIA Accounting Agency, his remains were accounted for in 2017, and his name remains permanently inscribed on the Courts of the Missing at the Honolulu Memorial.