Callison; Johnny – Society for American Baseball Research
SABR Convention History – Society for American Baseball Research
SABR Convention History – Society for American Baseball Research
Johnny Callison
SABR Convention History – Society for American Baseball Research
Johnny Callison - Baseball Egg
Johnny Callison Memorabilia, Autographed Johnny Callison
Johnny Callison Memorabilia, Autographed Johnny Callison
Johnny Callison Baseball Stats by Baseball Almanac
SABR Convention History – Society for American Baseball Research
Callison; Johnny – Society for American Baseball Research
SABR Convention History – Society for American Baseball Research