If you want a book in the same vein, and contemporary with Bletchley "Turning's Cathedral" by George Dyson is about the Institute for Advanced Study and the Man

If you want a book in the same vein, and contemporary with Bletchley "Turning's Cathedral" by George Dyson is about the Institute for Advanced Study and the Manhattan Project. Needless to say there's a lot of overlap and it really defines the culture of computer engineering at the time.