He was a left-handed pitcher over parts of ten seasons, 1911 - 1925, with the Philadelphia Athletics, Chicago White Sox and St. Louis Browns. For his career, he compiled a 71-66 record in 286 appearances, with a 3.89 earned run average and 484 strikeouts. Danforth played on two World Series championship teams, the 1911 Athletics and the 1917 White Sox. He appeared in one World Series game in 1917, pitching one inning, giving up two runs and striking out two.
From the description of David Danforth Scrapbook : scrapbook, 1911 - 1970. (National Baseball Hall of Fame). WorldCat record id: 655900128