Sorry, you actually have more info than I do. I can't seem to get ahold of much VA info. I did a search and found a couple of deeds from BRUNSWICK COUNTY, VIRGINIA:(Mostly has to do with Threewits)
Indenture made the 9th day of April, 1761, between Lewelling JONES and Benjamin JONES of Bath Parish in Dinwiddie County, for 500 pounds, conveying 650 acres on South side of Nottoway River and on North side of Hickory Run, 369 acres of which being part of a tract granted to Robert WYNNE, Junr. by Letters of Patent dated September 28, 1728, and the other 281 acres being part of a tract granted to Richard JONES, Gentleman, by Letters of Patent dated December 28, 1736.Witnesses were David WALKER, Richard LITTLEPAGE, and Thos. STITH.Indenture acknowledged in Court on April 27, 1761, by Lewelling JONES.Deed Book 6, page 650.
Indenture made the 6th day of November, 1759, between John HARWELL of North Carolina, County of Cumberland, and John WILLIAMSON, for (amount of consideration not stated), conveying 100 acres and being the land given to the said HARWELL by his father by deed of gift, and being part of that tract granted to John HARWELL, father of the said John, of 229 acres by Letter of Patent dated September 5, 1749, and lying on the South side of the Three Creeks, adjoining SISONS old path, the Great Branch, and land of WILLIAMSON.Signed by John HARWELL (his mark). Witnesses were Joel THREEWITS, Joseph CARTER, and Jehue PEEBLES. Indenture proved by the oaths of the witnesses in Court on March 24, 1760.Deed Book 6, page 442.
JOHN THREEWITS--Abram (22 years), Kit (11 years). Returned the 30th September 1780. Deed Book 14, page 106.
Joel Threewits moved on down to SC a little later.