About Jock Wallace Jr.
John Martin Bokas Wallace was a Scottish professional footballer and manager. Wallace played as a goalkeeper, and has the unique distinction of being the only player ever to play in the English, Welsh and Scottish Cups in the same season; this was set during the 1966–67 season where he played in the FA Cup and Welsh Cup for Hereford United, and in the Scottish Cup when he moved to Berwick Rangers. In his first season in charge – the club's centenary – he won the Scottish Cup. In 1974–75, it was Wallace who presided over the Rangers team that finally ended Celtic's nine-year period of dominance and won the League championship for the first time in eleven years.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.