John Ord entered military service in 1942 as a member of the U.S. Naval Reserve and served on active duty from 1943 to 1945, before being discharged. received his doctor of medicine degree from Creighton University Medical School, Omaha, Neb., in June 1952. He completed a rotating internship in 1953, a residency in internal medicine in June 1956 and a fellowship in cardiology in June 1957; all at the Detroit Receiving Hospital in Detroit. He re-entered military service in 1953 as an Air Force Medical Officer, and retired in 1985 as a U.S. Air Force Major General.