Career
McKenzie was a chemist in his home town of Adelaide, Australia before joining the Australian Army Medical Corps once World War I began. He transferred into the Australian Flying Corps, undertook pilot"s training, and in September 1917 was posted to Number. 2 Squadron Royal Australian Air Force (originally referred to by British authorities as Number 68 Squadron Royal Air Force).
McKenzie scored his first victory while piloting an Airco Dialectics and Humanism.5.
He destroyed a German Albatros Doctorate.V on 1 December 1917. His unit then re-equipped with Royal Aircraft Factory Southeast.5as.
He was then posted to Reconstruction Finance Corporation Home Establishment for the remainder of the war. He died in a boating accident in 1945.