Career

McMahon, a wingman, made his way up from the North Melbourne thirds to make his first senior appearance in 1949. The following year he played a semi-final, but wasn"t selected in North Melbourne"s 1950 VFL Grand Final team In 1951 he finished second in the club"s Best and Fairest award.

He represented the VFL an interstate match against Western Australia at the Melbourne Cricket Ground in 1955.