Dwight Jamison was born in Big Rapids, Michigan on February 15, 1928. He served in the Michigan National Guard as a teenager and enlisted in the Army in 1946. He received his basic training at Camp Polk, Louisiana and after that was deployed to Japan. He served at a hospital in Japan during the Korean War, helping with supplies and bringing wounded soldiers from a nearby airstrip to the hospital for treatment. He was also sent to an area near Pusan, Korea to help establish a Mobile Army Surgical Hospital. In 1951 he returned to the United States after four and a half years in Japan and served at Camp Stoneman, California.