Books by Frederick W. Winterbotham

Group Captain Frederick Winterbotham was born in 1897. He was educated at Oxford University and served in the Royal Flying Corps in the First World War. Between 1930 and 1945 he was chief of the Air Department of the Secret Intelligence Service. Throughout the war he was based at Bletchley Park, and he was awarded the CBE in 1943. He died in 1990.