Charles Decker Reidpath was an American track and field sprinter and winner of two gold medals at the 1912 Summer Olympics, who later went on to have an outstanding military career. Charles Reidpath (United States) set the men's 400 m world record of 48.2 in Stockholm, Sweden on July 13, 1912. It stood 3.9 years, until Ted Meredith's 47.4 on May 27, 1916. Wiki link