1)b
2)d because the English thought he was Spanish
3)b no idea what it is (penny whistle?)
4)c as I've not had one of them yet and I know Danny Boy was written by and Englishman
5)a (at last an a)
6)e (making a full set)
7)e (as I'm making these answers up as I haven't cheated by looking at t'internet)
8)Well there was one in '69 (people shooting at paratroopers - allegedly)
9)c (thought you were talking about football for a minute)
10)a
11)false (don't know which is worse corned beef or cabbage)
12)d (haha I know this one as I lived in Scotland)
13)a (although d runs it a close second I would think)
14)no idea (aren't Makem's from Sunderland?)
15)e as I've never heard of him.

Well as you can probably tell I'm not Oirish as I probably got 1/15 so I can't go out and have some green beers tomorrow.