Watson, Thomas Augustus Watson -- (United States telephone engineer who assisted Alexander Graham Bell in his experiments (1854-1934))
Watson, John Broadus Watson -- (United States psychologist considered the founder of behavioristic psychology (1878-1958))
Watson, James Watson, James Dewey Watson -- (United States geneticist who (with Crick in 1953) helped discover the helical structure of DNA (born in 1928))