Corporal Jimerson was a member of Company C, 1st Battalion, 24th Infantry Regiment, 25th Infantry Division. He was taken Prisoner of War while fighting the enemy in North Korea on November 28, 1950 and died while a prisoner on April 25, 1951. In September 1954, a set of remains reportedly recovered from a prisoner of war cemetery at Camp 5 were sent to the Central Identification Unit in Japan for attempted identification and further processing. This set of remains was designated X-14400, and was determined unidentifiable in November 1955. In February 2014 the Defense POW/MIA Accounting Agency (DPAA) requested the disinterment of Unknown X-14400. In June 2014, X-14400 was disinterred from the National Memorial Cemetery of the Pacific and accessioned into the laboratory. DNA analysis and circumstantial evidence were used in the identification of his remains. His name is permanently inscribed on the Courts of the Missing at the Honolulu Memorial.