I've just been conversing over the years with the guys, and their sister and mom, who own the local tire shop, who are all red haired, Irish, and pretty crazy...nice people, though. Their surname is in my family, so we like talking about Irish stuff.
So, should I read the book?...I recall your stating on a thread once that most Europeans were Celts of one stripe or another? IIRC, you backed it up pretty well.
I've read it. I think that Webb takes credit, on behalf of the Scots-Irish, for more than he can really justify.
However, I'd still say it's a very good book and plan on reading it again once it comes back from being loaned out.