American seismologist (1899–1968).
Born September 14th, 1899 in Los Angeles.
Died February 29th, 1968 at 68 years old in Los Angeles. [ref]
Those men who, in war, seek to preserve their lives at any rate commonly die with shame and ignominy, while those who look upon death as common to all, and unavoidable, and are only solicitous to die with honour, oftener arrive at old age and, while they live, live happier. Xenophon