Hello Jack, My Coppinger branch comes from Ireland also--County Cork.
My emigrant ancestor was Patrick Coppinger, who emigrated here c 1860 and settled in Wheeling, Ohio co, West Virginia. He married Ann Murphy, and I'm descended from him through his son Walter Coppinger.
If you have any West Virginia Coppinger ancestors chances are we are kin.
I can send you some info on this line if you're interested.