Alonzo Church

American mathematician (1903-1995).

Born June 14th, 1903 in Washington, D.C.. [ref]

Died August 11th, 1995 at 92 years old in Hudson. [ref]

Occupations
computer scientist, mathematician, philosopher, university teacher
Wikipedia

No one is actually dead until the ripples they cause in the world die away. Terry Pratchett