
William Stephenson
Sir William Samuel Stephenson was a Canadian soldier, fighter pilot, businessman and spymaster who served as the senior representative of British Security Coordination (BSC) for the Western Allies during World War II. He is best known by his wartime intelligence code name, Intrepid. Many people consider him to be one of the real-life inspirations for James Bond. Ian Fleming himself once wrote, "James Bond is a highly romanticised version of a true spy. The real thing is... William Stephenson."
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

British Security Coordination
1999
ISBN 9780880642361