Not quite Dave, the one thing they are less likely to be than Catholic is C of E... cos they're Scottish. They could be Associated Presbyterians, Baptists, Church of Scotland, Free Church of Scotland, Free Church of Scotland (Continuing), Free Presbyterians Wee Frees) or Scottish Episcopalians just to mention a few, but not C of E, who I understand automatically get a (wee?) free transfer to C of S when they cross the border.