My stupid ancestry is all Scottish and you have to go back too many generations to find me Oirish roots (My dad's maternal grandmother was from ROI).
Both of my wife's grandparents on her Mum's side are Irish but I don't know if that's on any use to our kids?
... They also both moved over to England in their 20's and had British passports etc. so I dunno if they even count as properly Irish.