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  • Joseph John Rochefort, Sr. (1900 - 1976)
    Joseph John Rochefort (May 12, 1900 – July 20, 1976) was an American naval officer and cryptanalyst. He was a major figure in the United States Navy's cryptographic and intelligence operations fro...
  • James Lovell (Continental Congress) (1737 - 1814)
    Lovell (October 31, 1737 – July 14, 1814) was an American educator and statesman from Boston, Massachusetts. He was a delegate for Massachusetts to the Continental Congress from 1777 to 1782.Early life...
  • Alan Turing, OBE FRS (1912 - 1954)
    Alan Mathison Turing (23 June 1912 – 7 June 1954) was an English mathematician, computer scientist, logician, cryptanalyst, philosopher and theoretical biologist. Turing was highly influential in the d...

Historical People who were known for breaking codes

https://en.wikipedia.org/wiki/Cryptanalysis