Who settled the Appalachian Mountains back country?

Question

The Quakers?
Puritans?
Celtic Britons?
Celtic Britons and Scotch -Irish?

Answer 1

This area was a big draw to the Scots-Irish, the descendants of Lowland Scots who had been encouraged to settle in Ulster (Northern Island). In general, these people headed toward the back country of most of the American colonies to which they emigrated--they settled in such areas of Pennsylvania and New York, and they certainly left their mark on the borderlands of what is now North Carolina and Tennessee!

Oh, just as a side note, the area of the North Carolina Piedmont where such cities as Greensboro and Winston-Salem are now located was largely settled by Mennonites and, later, Quakers--both were pacifistic groups.

Answer 2

Celtic Britons and Scot-Irish.