Mather qualified for Scotland through his Paternal Grandfather, George Scott Urquhart – who was honoured for gallantry as a young sailor in the Great War and is buried in the grounds of Stirling Castle.
Mather toured South Africa and Zimbabwe with the Scottish side in 1997 having won international A caps and sevens honours in Dubai and the 7's world cup in Hong Kong earlier that season.
He again toured South Africa in 1999 and was subsequently selected for the 1999 rugby world cup squad, winning his first cap in August 99 against Romania at Hampden Park in Glasgow.
He returned to full fitness in the narrow defeat by the Barbarians at Murrayfield in May 2004 to subsequently break his ankle 5 days later against Queensland in Brisbane in the first Australian tour match.
That was to be Mather's final appearance for Scotland as he chose to retire from the international game in the lead up to the 2005 Six nations sighting lack of Motivation and despondency with injury.
The Students, having been relegated to the 2nd tier for the first time in its history the previous year, Mather helped guide the side to the Gallaher Shield Final.