John Joseph Callahan (September 30, 1878 – June 20, 1952) was an American professional baseball catcher. He played in one game for the Philadelphia Athletics of Major League Baseball during the season. He went hitless in five at bats. He batted and threw right-handed. Life Born in Philadelphia, Pennsylvania on September 30, 1878, Callahan became a catcher for the Major League Baseball team known as the Philadelphia Athletics, but played in just one game during the 1903 season. He died in Philadelphia on June 20, 1952, and was interred at the Holy Cross Cemetery in Yeadon, Pennsylvania. References Major League Baseball catchers Philadelphia Athletics players Baseball players from Philadelphia 1878 births 1952 deaths