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The ultimate purpose of this page is to discuss our DNA results.

  • This project has only recently been started so we only have results from 5 persons so far. (See below). An example of what this page will look like over time is the Hodges DNA Project Discussion Page
  • Feel free to discuss this project on the Brereton Family Forum
  • Click here to place an order for a DNA test at Family Tree DNA


2 Aug 2013. We have two members so far: the William Brewerton on our y-Results page matches a Brereton who tested with another company and who we hope will transfer his results to this project.  They are both in the very common haplogoup R1b1a2 (R-M269). Also we have a Brereton with a Trinidad/West Indies pedigree who has tested in the FTDNA lab for the National Geographic geno 2 project. That test does not provide Y-STR markers so he has now ordered the YDNA37 test, and should get the results in a month or two. The interesting thing is that his haplogroup is I-L39, which is between 100 and 200 times rarer than R1b1a2 in the British isles. So we already are absolutely certain there are at least two unrelated branches of the Brereton Surname. If other Breretons test and also find I-L39, then because of the rarity it is much more likely you will find that the STR markers will show your families to be related.

25 Aug 2013. We now have results for a new member in the patriarch line"Breretons of Walgherton, Wybunbury and Liverpool". Alyn's line could match the William Brewerton line, an upgrade from 12 to more y-markers has been advised. Sept 2013. Results are now in and some SNP tests are under way.

1 Sep 2013. We now have 12 marker results the from the first test panel for the Brereton Trinidad line (results from the rest of the y-37 panels will follow later). As mentioned above, this line is the rare I2b2 haplogroup, also known as I-L39. 12 Sep 2013. The y-37 results are now in, and there is only a single match showing. It is at 4 steps and to an apparently unconnected surname. If other Breretons who Y test find that they are in this haplogroup, then probablity of a common ancestor will be very high.

7 Nov 2013. We now have results transfered from for the line of Arthur Brereton c.1791. There is now a group of three project members who have who together appear to be all in  the haplogroup R1b1a2 or R-M269 as it is also known. (See the group on the results page labled R1b- lineage I). More tests results have been ordered in order to learn more about the matches in this group of Breretons.

14 Nov - 9 Dec 2013. The SNP test results have come in for William Brereton ( c 1755. Wybunbury, Cheshire) and for  William Brewerton (1765-1805 Cheshire/Flintshire). Both are L51+ and P310- , which places them in the rather uncommon haplogroup R1b-L51* (ie R1b1a2a*). which has a frequency of around 0.5% in UK. It begins to look very likely indeed that when further tests have been completed on  Arthur Brereton (c1791 ) that he will also be found to match. This close matching is giving rise to reinforced efforts to search in Cheshire for a common Brereton ancestor of this lineage group. Both this lineage group and the I-L39 mentioned above provide two very interesting targets for other Breretons who have not yet undertaken DNA testing to consider. If you were to discover a match you might be led to discover more of your own Brereton lineage.

28 Dec 2013. The line for William Brereton ( c 1755. Wynbunbury, Cheshire) has tested positive for snp Z2113. This will be a good snp for others who are suspect to share the same lineage to test). The Big_Y was ordered for the William Brewerton line at the begining of December. When the results have been analysed we hope this will provide a test for Z2113 as well as providing new snps which can be used to help distinguish lineages.

12 April 2014. The result is in for the Norfolk Brereton line, who claim descent from the Breretons of Malpas and Ipstones, and thence to the De Breretons. Although this line is also R1b, the haplotype is very definitely different to that the 3 who test R1b-L51*. We must try and find some others from the Norfolk line or the Brereton Hall line to compare against.

24 May 2014. We have had two SNP results and a big-Y result come through in the last month, and these now firmly tie together 3 lines: Arthur Brereton b 1792 Ireland, William Brereton b 1755  Wybunbury Cheshire, and William Brewerton b 1765 Flint/Cheshire. As well as matching at GD 4, 5, or 6 for Y-67, they are all positive for SNP Z2113. So there definitely is a common Brereton ancestor, probably in C17 or earlier. FTDNA's TiP report suggests the common ancestor is most probably (ie 50% chance) between 8 and 15 generations ago.

29 June 2014. We have added two new lines both of which seem very probably share a common Brereton ancestor with the group of Arthur Brereton b 1792 Ireland, William Brereton b 1755  Wybunbury Cheshire, and William Brewerton b 1765 Flint/Cheshire. David Brereton of Killruin, Irteland b 1732 has a very close match, a GD of only 2 at Y-67 with William Brewerton. Michael Bruton 1859 Loughrea, Ireland has tested Z2113+. Since Z2113+ is believed to be rather uncommon in the Britsh Isles, we think it very likely that Bruton could be a spelling variation from what what orginally a common Brereton line, so we invited him to join the project. This group of 5 "dna cousins" provides targets in the search for the exact genealogical connections.

Participating in a Surname DNA Project provides:

  • A report on the participant's genetic DNA, which is very close (and sometimes identical) to the earliest known ancestor
  • A classification of the participant's "deep" ancestry, which gives insight into the prehistoric origins of your surname ancestors
  • A sense of camaraderie with all who participate in the Family Project, which is particularly strong for those who share a genetic ancestry
  • Stimulation to family research and sharing of information
  • A wider sense of identity and relationship, as we begin to realize how much we are a World Family.
  • A chance to compare your genetic ancestry with those of the Surname and the Variant Spellings
  • Locates the genetic matches that do not share your common surname

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