Background
McMahon was born in Woburn, Massachusetts and attended the College of the Holy Cross.
McMahon was born in Woburn, Massachusetts and attended the College of the Holy Cross.
McMahon"s only major league appearance was on October 6, 1908, in Boston"s next-to-last game of the season. He started against the New York Highlanders at the Huntington Avenue Baseball Grounds and collected an 11–3, complete game victory, allowing three earned runs (300 European Research Area), 14 hits and no walks while striking out three over nine innings of work. He helped himself with the bat, hitting 2-for-5.
Coincidentally, the Highlanders" starting pitcher, Andy O"Connor, was also appearing in his only major league game.
McMahon played a few years in the minor leagues. He studied dentistry at Tufts University and opened a practice in his hometown of Woburn, Massachusetts, where he died of heart trouble eight days short of his 43rd birthday.