Walkers present in Old Augusta during the Settlement Period (roughly 1738 through 1776) are primarily associated with the Wigton Walkers lineage as described by White 1902. According to White this line originated in Wigton, Scotland, traveling to Newry, Ireland in County Down, sometime during the first decade of the 18th century, before immigrating to America about 1726. In America they settled on the Nottingham Lots until about 1738, when they are said to have removed to Old Augusta.
About 1734 the founder of the American line, John Walker II is said to have begun preparing to relocate his family to the Shenanndoah Valley. Source:White, 1902 tells us that he established a cornright, and then returned to the Nottingham Lots, where he died. His wife Katherine died a few years later (1738), and his extended family is then described as moving to Walkers Creek on Bordens Grant. White implies that there settlement on Borden's Grant was at the same location where John II established his cornright, but this is by no means certain. Since Borden's Grant was not available for settlement until 1737-1738, it seems unlikely that John II would have attempted to establish a cornright in this location in 1734. More likely his cornright lay somewhat to the north, possibly on Beverly's Manor, or possibly further north.
In anycase, by 1740 several of John II's descendants and kinsmen had settled on Walkers Creek in what became Augusta County, and is now Rockbridge County. These early Walkers on Borden's Grant included:
Another son of John II, John Walker III, is described by White as settling further north near his brotherinlaw, John Campbell.