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 ~
A hero to humanity. Alan Mathison Turing British mathematician, logician & cryptanalyst. He was highly influential in the development of computer science. Turing is widely considered to be the father of theoretical computer science and AI. During WW2 he help crack the allegedly unbreakable Enigma code. Turing was prosecuted for homosexuality in 1952. He accepted treatment with female hormones (chemical castration) as an alternative to prison. Turing died from suicide by cyanide poisoning.
Alan Turing with two colleagues and a Ferranti computer in January 1951. Turing had previously been involved with the construction of both the Colossus at Bletchley Park, and later the Automatic Computing Engine