Career
From 1964 to 1967 he was the deputy commander-in-chief of North America Air Defense. In his later years, Dunlap was the last surviving Royal Canadian Air Force air marshal. Dunlap joined the Royal Canadian Air Force in 1928, earning his pilot"s wings at Camp Borden in Ontario. In his early flying career Dunlap was assigned to aerial photography duties when he mapped of large parts of Canada.
Later, in the mid-1930s, he worked in air armament.
On the outbreak of, Dunlap was the Director of Armament at Air Force Headquarters. In 1942 he was promoted to group captain and took up command of the air armament school at Royal Canadian Air Force Station Mountain View in Ontario.
Dunlap was posted to the United Kingdom in late 1942, becoming Station Commander of Royal Air Force Leeming in Yorkshire in January 1943. At that time Leeming was part of Number.
6 Group in Bomber Command.
Dunlap"s time at Leeming only lasted until to April 1943 and he was then given command of Number. 331 (Bomber) Wing which comprised Nos. 420, 424, and 425 Squadrons operating the Wellington bomber in Tunisia and were used to support the invasion of Sicily and then Italy.
Later he was promoted to air commodore and in January 1945 he was appointed Air Officer Commanding Number.
64 Base headquartered at Royal Air Force Middleton Saint George. After the war, Dunlap was Commandant of the National Defence College (1951–1954).
Promoted to air vice-marshal in 1954, he served as Vice-Chief of the Air Staff in 1954. He was promoted to air marshal and served as Chief of the Air Staff in 1962.
His final service appointment was as the Deputy Commander of the North American Aerospace Defense Command (or North America Air Defense) from 1964 to 1967.
He retired from Royal Canadian Air Force in 1968. In retirement Dunlap worked on a voluntary basis to support the development of the National Aviation Museum in Ottawa. In 1979 Dunlap moved to Victoria in British Columbia where he retired from voluntary work.
At his death in 2003, Dunlap was the last of the Royal Canadian Air Force air marshals.