Showing posts with label YFull. Show all posts
Showing posts with label YFull. Show all posts

Saturday, December 1, 2018

Looking like we are Fairbairns, not Elliotts after all????

The Fairbairn Surname DNA project is gradually plugging away at upgrading different lines of the Haplogroup I1 Fairbairns and their matches to BigY.
One of the benefits of this, especially when the resulting files are added to yFull.com, is that  timescale estimates are added to the branches being created on the yDNA tree of mankind.

A snapshot of the resulting tree as at Nov 2018 is on the Guild of One Name Study Histories pages
copied here:



Our Fairbairn (& matching Elliott) sub branch of I-Y7277 is
I-Y32666/ which as of Nov 2018 yFull estimated was formed 3800-2300 years before present, average 3000 (where "present" is 1950). The Most Recent Common Ancestor (MRCA) is estimated as 600 ybp (average of 900-325 ybp).
Underneath that branch we now have one branch without close matches on the known sub branches.

Then come two main sub branches:
  • one estimated to have formed 600 ybp (average of 900-325 ybp), with a MRCA of 225 ybp 
  • one estimated to have formed 550 ybp (average of 900-225 ybp), also with a MRCA of 225 ybp
The former has two of our matching Elliot kits in it
The latter has two separate branches of our Fairbairns, namely the Cockburnspath, Berwickshire branch and that of John Fairbairn/Bessie Flint who married abt 1725 in Melrose, Roxburghshire

So, with the earlier generic branch being a Fairbairn, it does look like these Elliotts sprang from a Fairbairn around 1400, or 1725, depending on whether you use the branch formation or the MRCA date.

It's sale time again at FamilyTreeDNA until the end of December, so an excellent time to get more branches represented by BigY testing (hint hint)
 

Some background reading from Roberta Estes DNA-explained blog as to Why the Big Y
 


Thursday, May 18, 2017

Update for I1 Haplogroup FAIRBAIRNs

With one of the recent BigY sales at FamilyTreeDNA, the opportunity was taken to test four of the Lineage 1e FAIRBAIRNs, and analyse their results at yFull.com.

The latest version (5.04) of the yFull tree now shows that this has resulted in the creation of a new branch of the tree underneath I-Y7277 (which was estimated by yFull as having been formed 3400 ybp TMRCA 3100 ybp) which is where they are currently shown on FTDNA.


The new branch is I-Y32666, with an estimated formation date of 3100 ybp but a TMRCA (time to most recent common ancestor) of 225 ybp, ie 1725.

The DNASurnames Haplogroup tree which shows yDNA tree branches, along with line patriarchs and tested participants (if approved to do so, has been updated (http://dnasurnames.info/dchaplogroupi.htm#a20)

We believe, from papertrails, ySTR testing and a bit of "a miracle happens here" for one or two of the links, that all four tested descend from John FAIRBAIRN and Bessie FLINT whose children were baptized at Melrose, Roxburghshire from  1729 to 1740, and one at Smailholm in 1741.

So how much earlier were all the branches for the matching I1 Fairbairns formed?

That will take an interested party, or two, from any of other groups at
to also test BigY and analyse the results at yFull.
Any takers?

Friday, April 21, 2017

DNA Sales

Check out the overall DNASurnames blog for full details of the FamilyTreeDNA sale prices for DNA Day, and a link to sales at other sites.

Of particular interest for the Fairbairn Surname DNA project are those for
FamilyFinder - $20 off to $59 US
BigY down to $425US
SNP Packs down to $89
yDNA 37 to $129
yDNA 67 to $209

Please check with your project admin before rushing off into SNP Pack testing to ensure that you are purchasing a relevant pack for your haplogroup.
And if you are going to test BigY at some stage, save your pennies rather than duplicate your testing by also doing a SNP pack.

FYI we now have 4 BigY test results in the FAIRBAIRN project, all currently determined to be I-Y7277, and awaiting further analysis at YFull.com to see if there's any new sub branches to be found.
It would be good to see how the ELLIOT sub group in the project compare!