[2][3] McMahon was born in Glasgow and played for Pollokshaws Hibs and St Anthony's before joining English side West Ham United in 1932.
He spent two seasons with the Hammers making 16 appearances before returning to Scotland with St Mirren.
He soon moved back down south to Third Division North side Wrexham.
[3] The league was abandoned due to World War II and McMahon moved back to Wrexham to join the home guard and also guested for the football club.
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