A centre half back, he came from Traralgon and made his VFL debut in a win over North Melbourne at Arden Street in round four.
Hawthorn went on to win their first ever premiership later in the year but McMahon made no further appearances that season.
[2] McMahon spent the rest of the decades in Tasmania, where he had a productive career.
Apart from playing with Glenorchy, whom he won a 'Best and Fairest with in 1965, McMahon appeared for both the league and state in representative football.
The defender also won a Lefroy Medal in 1965, the same year he was a member of Glenorchy's TANFL premiership team.