John Francis Coffey (January 28, 1887 – February 14, 1966) was an infielder for the Boston Doves (1909), Detroit Tigers (1918) and Boston Red Sox (1918). Coffey graduated from Fordham University in 1910. While still in college, he was signed by the Doves and played 73 games; it was very common in those days for college players to play in the major leagues as well. He then spent most of the next 16 years in the minors, seeing his only other major-league action in 1918. He started that season playing 22 games with the Tigers before being sold to the Red Sox in mid-August. He was listed as a possible replacement for the injured Dave Shean, but never got a chance to play in the World Series. Coffey is the only player to play with both Ty Cobb and Babe Ruth in the same season (1918 Tigers and R