Downtime_1882 has added a photo to the pool:
Alan Turing's signature appears in the visitors book [3rd and 6th from bottom and close to the top] of the household of Maxwell Herman Alexander Newman & Lyn Irvine Newman.
Alan Turing was an English mathematician, logician, cryptanalyst, and computer scientist. He was highly influential in the development of computer science, providing a formalisation of the concepts of "algorithm" and "computation" with the Turing machine, which played a significant role in the creation of the modern computer.
During the Second World War, Turing worked for the Government Code and Cypher School (GCCS) at Bletchley Park, Britain's codebreaking centre. For a time he was head of Hut 8, the section responsible for German naval cryptanalysis. He devised a number of techniques for breaking German ciphers, including the method of the bombe, an electromechanical machine that could find settings for the Enigma machine.
Souce: Mostly from en.wikipedia.org/wiki/Alan_Turing
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