during the 18th century Scotch-Irish emigrants from Northern Ireland landed in Philadelphia and traveled the old Indian trails across the Colony of Virginia, as far west as the Shenandoah Valley. They settled in Augusta, Culpeper, Rockingham, and Shenandoah Counties. These county records may be viewed for surnames in the interest in locating the ancestors
https://virginiapioneers.net/counties/augusta/
https://virginiapioneers.net/counties/culpeper.html
