[1] He was trained at the School of Army Co-operation and was then posted to No 31 Squadron, which at the time was based in Lahore in India.
[1] In 1942, during the Second World War, Mavor received the Air Force Cross for Army Co-Operation and Transport operations which he performed with his squadron in India, the Middle East and Burma.
[1] In 1964 attended the Imperial Defence College and on graduation he became Air Officer Commanding No 38 Group.
[1] His appointment reflected a review of Civil preparedness for home defence carried out by the new Conservative Government in 1979 shortly after it was elected.
[1] He was a Fellow of the Royal Aeronautical Society, and was appointed Deputy Lieutenant of North Yorkshire on 24 May 1976.