Lived at western Edge of Beverley Manor on Cathay's River; Acquired 350 acres from Beverley in 1740; 200 acres of the 350 is deeded to the "church Wardens and vestrymen" by "Gentleman John Campbell".
The Justice. White 1902 has him as the son of John Campbell=Elizabeth Walker.
It is possible that Mary is a daughter, not wife. In either case, "Hackett" is presumably her married name. In the case that she was Robert's wife, she had remarried.
A number of lines of Campbells in Old Augusta, especially on Beverley's Manor, trace their lineage to the sons of Duncan Campbell and Mary McCoy. Evidence that Duncan and Mary were actually their parents, has not come to hand, and given the issues associated with this couple, the connection may be apocryphal.