Educated at King Edward's School, Birmingham, Guest joined the Royal Air Force in 1918.
12 Squadron in 1936 and being seconded to the British Military Mission in Egypt the following year.
[1] He served in the Second World War as Senior Air Staff Officer at Headquarters No.
204 Group before becoming deputy director of Organisation at the Air Ministry in 1942.
[1] In retirement he became an aeronautical advisor to the Minister of Transport and a member of the Air Safety Board.