Location Source Date Page Caption Uniform Type
2000 CUPS OF COFFEE, Marc Okkonen (unpublished) 2007 draft 148 McMahon, Henry John Boston AL Throwing action - upper body view
Boston Globe Aug. 31, 1908 5 H. J. McMahon Boston AL Throwing action - full length view
Lefty Blasco Collection (from a newspaper) c. 1908 Holy Cross Baseball Squad Holy Cross College Team