Donald T. Campbell

American social scientist (1916–1996).

Born November 20th, 1916 in Grass Lake. [ref]

Died May 6th, 1996 at 79 years old in Bethlehem. [ref]

Occupations
non-fiction writer, psychologist, sociologist, university teacher
Wikipedia

You needn’t die happy when your time comes, but you must die satisfied, for you have lived your life from the beginning to the end. Stephen King