Dempsey led American League catchers twice in fielding percentage, twice in baserunners caught stealing and once in assists. He played more games as a catcher than any other player in Orioles history (1230). During his career, Dempsey caught ten different twenty game winning pitchers. He was a durable player, only going on the disabled list twice in his career.

This Baltimore Orioles jersey was signed , "John Richard Dempsey" and inscribed, " World Series MVP," "2 x World Series Champs," "The Dipper," and "97 O's HOF." This jersey includes a JSA sticker, but does not include the card.