[RegulatorCountry]

Many Irish moved to Scotland during the Industrial Revolution.

Eire-Scottish, lol? One good turn deserves another, I guess.

[C19fan]

Hard to say exact numbers but around 15% of Scotland are Catholics most of those have Irish ancestry. From wikipedia:

Famous Irish-Scots include Socialist revolutionary James Connolly, author Sir Arthur Conan Doyle, footballers Aiden McGeady, Ray Houghton, Owen Coyle and James McCarthy, politician George Galloway, actors Sean Connery, Brian Cox, Gerard Butler, and comedians Billy Connolly and Frankie Boyle.

http://en.wikipedia.org/wiki/Irish-Scots