Guy Jonathan Porter (September 8, 1884 – February 22, 1951) was an American track and field athlete who competed in the 1904 Summer Olympics. In 1904 he did not finish in marathon competition. References External links Guy Porter's profile at Sports Reference.com 1884 births 1951 deaths American male marathon runners Olympic track and field athletes of the United States Athletes (track and field) at the 1904 Summer Olympics 20th-century American people