My husband OTOH is clear through aboriginal Irish on his mother's side. I met his grandpa when we were first dating - and a more Central Casting Irishman of the coal-heaving variety you would never meet. Great big huge man, even in his 80s, fair where the sun hadn't burned him red, jolly twinkling gray eyes (that he passed on to his grandson and to my daughter).
When my daughter was in Spain, everybody thought she was Irish, and when she said she was American they all exclaimed, "No! No! Impossible!" She could walk down a road in County Mayo barefoot and with a shawl on her head, and blend right in. She's more Irish than either one of us, got it from both sides.
We have a regular on the Undead Thread who lives in Mayo. It's very scenic, in a drippy way.