Steve: Hawkins was my 4ggrandfather. I have done considerable research about his ancestry using a couple of professional genealogists. There is no concrete proof of his ancestors. Best circumstantial evidence is that his parents were Francis Kerby and Mary Hawkins.
Richard, Francis & John Kerby are listed in Goochland County, VA in the 1730-50 era.They were likely either brothers or Richard was the father of Francis & John.
Henry Kerby immigrated about 1688 and is listed in Essex County, VA over the next decade or so.He and wife, Hannah bought land in South Farnum Parish, Essex County in 1702 and sold it in 1704.Henry bounght land in King William County (next county SW of Essex) in 1706.Henry then appears in Hanover Co. (next county SW of King William) suggesting a pattern of SW migration.Land later owned by Richard and Francis in Goochland Co. was on Licking Hole Creek whose headwaters start in Hanover Co. suggesting a connection.I think Henry was likely father of Richard and grandfather of Francis and John or father of all three.Evidence too lengthy to discuss here but happy to correspond with you.