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1954 Bio Note 
Mr. Bailey served his apprenticeship with Rolls Royce, Ltd., Derby, and studied at Derby Technical College, where he graduated B.Sc. (Eng.) (Lund.) with first-class honours in 1937. He continued his studies at Nottingham University College and wrote a dissertation and thesis on torsional vibration for which he was awarded the London University degree of M.Sc. (Eng.) in 1939.
He joined the Royal Artillery in 1939 and transferred to the Royal Air Force with a commission in the Technical Branch in 1940. On demobilization in 1946 he was in charge of the Engine and Power Plant Section of the Headquarters Bomber Command Technical Staff. He became Power Plant Project Engineer to British Overseas Airways Corporation, and, in 1948, joined Armstrong-Siddeley Motors, Ltd., in charge of their mechanical engineering research and development laboratory.
He joined the staff of Intelligence Division at the London Headquarters of the Department of Scientific and Industrial Research in September 1949.