gnomad, it does appear to differ from one family to the next. My mother's father's parents came over from Ireland, and I was not brought up with any Irish culture at all. On my father's side, there is some Scots Irish, but all I know about that is that it's there, but I don't know anything else except that it came to the US by way of Canada and Bermuda.

I don't know if there was any Irish culture in my mother's home as she was growing up. I do know that she hated her Irish relatives for some reason, although I was never told specifically why. It could be their Catholicism. She was raised Catholic, and she hated it.