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William Frederick Friedman

American cryptologist (1891–1969).

Born September 24th, 1891 in Chișinău. [ref]

Died November 12th, 1969 at 78 years old in Washington, D.C..

Occupations
computer scientist, cryptologist, mathematician
Wikipedia
William_F._Friedman

Nothing in the world like a sore stomach for the right reasons. Stephen Chbosky