Most of the US Tabbs that I have communicated with are from Humphrey Tabb who came to the US in 1636(?) from Devon England. I have been in contact with an English Tabb researcher who is from Cornwall and there are still a group of Tabbs there. Perhaps the best option is to find out as much as possible about the Cornwall Tabbs. We have been unable to make the connection between the Cornwall Tabbs and the Devon Tabb family that "sent" Humphrey to America. The closeness of Devon and Cornwall is such that we assume there is a connection that we cannot prove.