Just a quick glance at all these places in England where it was collected, nearly all are in a 40 mile radius of Bristol, just 2 out of area, the Herts version about 100 miles away, and the Kent version which is from a traveller who moved about the south of England. No versions from northern England or Scotland or Ireland. If any of the American families can be traced back to their English ancestors it would be interesting to see if they came from the Bristol area. I would imagine Bristol was one of the ports ideal for migration to America.