Thomas Familton **

After all these years, we now know that Thomas and William are indeed genetically related.
A descendant of each has now tested, and both are predicted as haplogroup G-M201.
At 37 markers, they are a Genetic Distance of 3 apart, all differences being on faster mutation markers.
It is interesting to note that William' descendants became known as Hamilton rather than Familton - and the G haplogroup in the Hamilton Y-DNA project contains all of three members (out of 580 as at Jun 2015) in the G haplogroup, none known to be related to each other.
As yet no autosomal dna matches have been identified between FAMILTON descendants, but that's the next challenge.