How it Works:  The computer analyzes the mapped results on each man’s chromosome, compares  with others in the group, and outputs a phylogenetic tree,  which is a branching diagram that shows inferred evolutionary relationships. 

Significant Findings:  A. The results have identified a distinct Pomeroy subclade: R-BY160561, which formed about 1000 AD well before the keeping of parish records. 

Clevedon does not share mutations recorded in Node 9, nor does it share the mutations visible downstream in Node 8. (PA1750 and Brixham) . The Clevedon tree therefore sits on the oldest branch of this particular Pomeroy subclade. 

Beaminster 1618 does not share the mutations seen in Node 8:  Therefore, Beaminster branched after Clevedon (circa 1425-1550) but before the PA1750 and Brixham trees.  (1550-1650).

Alma LaFrance - August 2019

As it stands today, (August 2019)  our  Pomeroy surname project is made up of a host of older Y-37 tests.  This early project identified at least seven distinct genetic paternal lines with subgroups within.  

It is not surprising that the family is made up of more than one haplogroup as the de la Pommerai  surname was heritable far back in time, even before the general adoption of surnames, to the 900AD’s  in Normandy. 

While traditional research hasn’t revealed how the subgroups were related, or where they branched,  FamilyTreeDNA’s Big Y700 technology promised to give us a clearer picture of when this branching occurred.

Genetic Family B represents our widest-spread group with known genealogies back to the early 16th century.   It’s sub-groups include five based in the UK; Whitechapel,  Lewannick, Wilton, Clevedon and Millstreet, Ireland. Four are situated in the USA, but whose earliest ancestors originated in the UK, including Brixham, Beaminster 1618, Front Royal, Virginia, Pennsylvania 1750 and yes, one in Australia.  Missing from this chart are the Whitechaple and Millstreet Families: Both have Y37 marker results and would be placed to the left. 

These advanced YDNA results have allowed us to build this preliminary  phylogenetic mutation history tree.  (Using  D. Vance's SAPP tool.)