born in niagara falls, ontario, mason came from a family rooted in motorsport. his father and grandfather designed and built the rtj formula vee that his father raced to many championships in north america in the 1980s and 1990s in the scca and in the canadian automobile sport clubs asn canada fia. his brother, jesse mason was also a successful racing driver, competing internationally and finishing 3rd in the indy lights championship in 2004.