The Turing Guide

486 | NOTES TO PAGES 37–47

7. Letter from Don Bayley to Copeland (15 December 1997). Minutes of the Executive Committee of
   the National Physical Laboratory for 23 October 1945, NPL library; a digital facsimile is in The Turing
   Archive for the History of Computing (http://www.AlanTuring.net/npl_minutes_oct1945).
   8 J. Murray, née Clarke, ‘A personal contribution to the bombe story’, NSA Technical Journal, 20 (4) (Fall
   1975), 41–6, p. 44.


8. Letter from Turing to Hall (Note 4).


9. Letter from Turing to Hall (Note 4).


10. Bailey interview (Note 6).


11. Letter from Turing to Routledge (22 February [1953]), King’s College Archive, Catalogue reference D14.


12. Norman Routledge in an interview broadcast by the BBC on 11 September 2009 (http://www.bbc.
    co.uk/worldservice/news/2009/09/090911_turing_page_nh_sl.shtml).


13. Letter from Turing to Robin Gandy (11 March [1953]), King’s College Archive, catalogue reference D4.


14. J. D. Watson, The Double Helix: A Personal Account of the Discovery of the Structure of DNA, Penguin
    (1999), p. 155.


15. The Imitation Game, directed by Morten Tyldum.


16. C. Caryl, ‘Saving Alan Turing from his friends’, New York Review of Books (5 February 2015). The
    movie’s historical errors are the topic of my ‘Oscars for The Imitation Game? ’, Huffington Post
    Entertainment (13 July 2015) (http://www.huffingtonpost.com/jack-copeland/oscars-for-the-
    imitation-_b_6635654.html).


17. Letter from Turing to Gandy (Note 14). Kjell’s surname is a new discovery: ‘Kjell Carlsen’ is written in
    the corner of a sheet of Turing’s handwritten mathematical notes.


18. Letter from Turing to Routledge (Note 12).


19. Letter from Turing to Gandy (Note 14).


20. Letter from Viscount Portal of Hungerford to F. C. Williams (30 November 1950); letter from Williams
    to Hungerford (13 December 1950).


21. Letter from A. C. Ericsson to Williams (19 April 1955).


22. Letter from Turing to Maria Greenbaum, postmarked 10 May 1953, King’s College Archive, catalogue
    reference K1/83.


23. Nick Furbank in interview with the author, September 2012; letter from Furbank to Gandy (13 June
    1954), King’s College Archive, catalogue reference A5.


24. The movie’s original title was Britain’s Greatest Codebreaker; it was directed by Nic Stacey.


25. P. Sammon and P. Sen, ‘Turing committed suicide: case closed’ (5 July 2012) (http://www.turingfilm.com).


26. Letter from Franz Greenbaum to Sara Turing (5 January 1955).


27. Sammon and Sen, ‘Turing committed suicide: case closed’ (Note 26).


28. Turing’s Last Will and Testament (11 February 1954), King’s College Archive, catalogue reference A5.


29. Eliza Clayton quoted in Sara Turing’s ‘Comments by friends on the manner of Alan Turing’s death’,
    typescript (no date), King’s College Archive, catalogue reference A11.


30. Letter from Gandy to Sara Turing, quoted in Alan M. Turing (S. Turing 1959), p. 118.


31. Letter from N. Webb to Sara Turing (13 June 1954), King’s College Archive, catalogue reference A17.


32. Letter from Bernard Richards to Copeland (20 August 2012).


33. Letter from Richards to Copeland (31 May 2016).

CHAPTER 5 A CENTURy Of TURING (wOlfRAm)

1. This chapter is based on a blog post I wrote to commemorate the centenary of Turing’s birth:
   ‘Happy  100th birthday, Alan Turing’ (23 June 2012) (http://blog.stephenwolfram.com/2012/06/
   happy-100th-birthday-alan-turing).


2. Alan M. Turing (S. Turing 1959).


3. Turing (1950).


4. S. Wolfram, A New Kind of Science, Wolfram Media (2002) (http://www.wolframscience.com/
   nksonline).