Joan Clarke, the cryptanalyst war-heroine, and the women of Bletchley Park (you never heard of)
Joan Clarke Murray codebreaker at Bletchley Park during World War II, became deputy head of Hut 8 in 1944. Code breaking was almost exclusively done by men during the war. Clarke was paid less than the men and felt that she was prevented from progressing further because of her gender. She was a English cryptanalyst and numismatist ~
Mathematician Margaret Rock joined Bletchley Park on 15 April 1940 and was selected to work in Dillwyn (Dilly) Knox’s Research Section, a small team tasked with breaking untried ‘Enigma machine variations’ and later the German Abwehr Enigmas. Margaret received an MBE for her services to the country in 1945.
Alan Turing, British mathematician (1912-1954), altered the course of the 20th C. His 1936 paper laid the foundation of computer science, providing the first formal concept of a computer algorithm. In WWII he designed the machines that cracked German military codes. In the late 1940's he turned his attention to artificial intelligence and proposed a challenge, now called the Turing test, still important today. His contribution to mathematical biology was no less profound.
Gordon Brown: I'm proud to say sorry to a real war hero
Alan Turing was a quite brilliant mathematician, most famous for his work on breaking the German Enigma codes. It is no exaggeration to say that, without his outstanding contribution, the history of the Second World War could have been very different. He truly was one of those individuals we can point to whose unique contribution helped to turn the tide of war.
WW2 codebreakers - the final secret - Telegraph. Rare photo emerges of female code breakers who worked in secret using world's first electronic computer to crack Hitler's messages during WWII. Mrs Chorley, here, and her fellow codebreakers (above) at Bletchley Park in the photograph taken in 1945