“Alan Mathison Turing (1912-1954) was born in London, the son of Julius Mathison Turing of the Indian Civil Service and of Ethel Sara Turing (née Stoney). The Stoneys were a family of considerable scientific distinction, three of them having been Fellows of the Royal Society.”
James H. Wilkinson. 2003. Turing, Alan M.. In Encyclopedia of Computer Science (4th ed.), Anthony Ralston, Edwin D. Reilly, and David Hemmendinger (Eds.). John Wiley and Sons Ltd., Chichester, UK 1803-1804.