My husband took the 46-marker Y chromosome test on Ancestry.com. He is in haplogroup R1b, the artisans. The nearest match to him was a John Presson of CA (notice the great similarity in names) back to 12 generations. He is from the Wessons that went from VA to SC to FL and back to SC (Newberry County). If you are thinking of DNA testing, he has posted the results and we can see how far back the common ancestor goes.