 While in Pittsburgh, Johnny and Eddie O'Brien became the first twins in major league history to play for the same team in the same game.They are also one of only four brother combinations to play second base/shortstop on the same major league club.The others are Garvin and Granny Hamner, for the Philadelphia Phillies in 1945; Frank and Milt Bolling, with the Detroit Tigers in 1958, and Billy and Cal Ripken, for the Baltimore Orioles during the 1980s.