Prior to the United States entering World War I, Guy left Washington & Jefferson when he was accepted into the American Volunteer Motor Ambulance Corps.
[4] After the United States entered the war, Guy served in the U.S. Army infantry from September 1918 to December 1919.
[1] The Heralds opened the 1920 season with a game against the Cleveland Panthers, played at Navin Field on October 10, 1920.
Following the 1920 season, he played for the Detroit Tigers (1921), Buffalo All-Americans (1921-1922), Cleveland Indians (1923), and Dayton Triangles (1924).
Guy became involved in the electrical appliance business and moved his family to locations in Massachusetts and Ohio.
In 1930, Guy was living in Belmont, Massachusetts, with his wife, Garnette, and their two oldest sons, Charles and John.