John Walker and his wife, Katherine Rutherford, first lived at Wigton, Scotland, later moving to Newry, Ireland, from whence they sailed from Strangford Bay in May 1726, landing in Maryland in August of that year. Soon he was settled in Chester County, Pennsylvania, where he died in 1734. His wife, Katherine, died the same year. Most of the family of John Walker, the immigrant, moved from Pennsylvania and settled in Augusta and Rockbridge Counties in Virginia, and from there they scattered westward.
(Source: Indian Tragedies Against The Walker Family, by Emory L. Hamilton, unpublished manuscript)