Alfred Carlton Gilbert was an American inventor, athlete, magician, toy maker and businessman. As the founder of A. C. Gilbert Company, Gilbert was known for inventing the Erector Set and American Flyer Trains. Alfred Gilbert (United States) set the men's pole vault world record of 3.86 m in New Haven on June 12, 1908. It stood 1 day, until Walter Dray's 3.90 m on June 13, 1908. Wiki link