It is hard to overstate the importance of Alan Turing, the British mathematician who died in 1954. He was a hero in science, for one. Turing invented the concepts that underlie modern computers and artificial intelligence. And he was a hero in war: He was a vital part of the British cryptographic team at Bletchley Park that cracked the German Enigma code during World War II.
Alan Turing (1912 – 1954) - Turing is considered to be the father of theoretical computer science and artificial intelligence. During the Second World War, he worked at Bletchley Park, Britain's codebreaking centre. His work shortened the war in Europe by more than two years. Here seen in 1951.
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 ~