Colonel Harold V. Ellingson graduated from the University of Idaho with a bachelor's degree in bacteriology in 1935 and a doctorate degree in 1939. He then successfully obtained his Doctor of Medicine from the University of Wisconsin in 1941. He also received his M.P.H. in 1946 from Johns Hopkins University.
Ellingson served in the United States Army and U.S. Air Force as a medical officer and flight surgeon from 1942 to 1966. In 1963, he became commander of the School of Aerospace Medicine at Brooks Air Force Base in Texas. Under the command of Colonel Ellingson, the School of Aerospace Medicine provided academic training in all aspects of specialized aeromedical practice for selected physicians and nurses of the Air Force, Army, Navy and allied nations. Training in bioastronautics for aerospace research pilots also was provided.
Upon retirement from the Air Force, he was appointed chairman of the Department of Preventive Medicine at Ohio State University. Ellingson also was a past president of the American College of Preventive Medicine and past chairman of the section on preventive medicine for the American Medical Association (AMA).
Ellingson was a Fellow of the American College of Physicians and the Aerospace Medical Association. During his military service, he received the Army Commendation Medal, the Air Force Commendation Medal, the Legion of Merit with Oak Leaf Cluster and the Air Medal.
Ellingson died Oct. 24, 1979, at the age of 66.