From Historical Properties of York County, South Carolina, York County Historical Commission:
"The Carolina back country was nearly devoid of European settlers prior to 1750, but by the time the American Revolution reached the area in 1780, the back country contained an estimated population of more than a quarter of a million. The largest proportion of these were Scots-Irish Presbyterians, although there were also numbers of English, Welsh, native Irish, native Scots, Swiss, French, and Germans."