John C. Calhoun of South Carolina was the only man to serve as Vice President to U.S. Presidents in two different parties: John Quincy Adams (1825-1829) and Andrew Jackson (1829-1832). He was also the first to resign the office.
Paul Winchell was the first person to patent an artificial heart prototype. He also invented the retractable ball point pen, and was a ventriloquist from The Paul Winchell Show on Jerry Mahoney's radio program in 1943.
DID YOU KNOW? Marlon Brando hated memorizing lines so much that he posted cue cards everywhere to help him get through scenes.
He even asked for lines to be written on an actress's posterior. (That request was denied.)