Career
At the 1912 Summer Olympics in Stockholm he was 10th in the Marathon. Three years later on May 2, 1908, he finished second to Hatch in the same race(2:30:01). In both races, Forshaw competed for the Missouri Athletic Club.
Forshaw was selected to represent the United States in the marathon at the 1906 Olympic Games.
He was reported to have been from Saint Louis. In March, 1912, Forshaw was one of "twenty of the best distance runners in the middle west" scheduled to participate in a 20-mile indoor marathon at Riverview Rink in Chicago, Illinois.
He also finished second to Joseph Erxleben in the 25-mile Missouri Athletic Club marathon in Saint Louis on May 4, 1912 to earn a spot on the United States Olympic Team.