George R. Kelly aka George "Machine Gun Kelly" Barnes (July 18, 1895 ? July 18, 1954) was a notorious American gangster during the prohibition era (Roaring Twenties).His crimes included bootlegging, armed robbery and kidnapping. George "Machine Gun" Kelly is probably considered one of the most famous gangsters from the prohibition era.BiographyEarly life and educationMachine Gun Kelly was born George Barnes in Memphis, Tennessee. He had a girlfriend named Cassie. Kelly?s earl