Thomas Chrowder Chamberlin

American geologist and educator (1843–1928).

Born September 25th, 1843 in Mattoon. [ref]

Died November 15th, 1928 at 85 years old in Chicago. [ref]

Occupations
geologist, journalist, university teacher, writer

Here is the test to find whether your mission on Earth is finished: if you’re alive, it isn’t. Richard Bach