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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

Let us never know what old age is. Let us know the happiness time brings, not count the years. Ausonius