The Thibodeaux Y haplotree has another new branch! Since the last Acadian Amerindian Ancestry DNA Project update of February 2021, more Thibodeaux men have taken the Big Y DNA test and now a new Thibodeaux branch has emerged on the Y DNA haplogroup tree: R-FT273461.

With every new Big Y DNA single nucleotide polymorphism (SNP), or marker, that arises from the Acadian Amerindian Ancestry DNA Project, comes a story of a common Acadian ancestry, as Y DNA is passed virtually unchanged from father to father, a history that traces back generations to 17th-century Acadia (in Nova Scotia, Canada), and a shared culture, with its earliest origins in Europe (most often France) and also the New World. 

Such a story is told by the Y DNA haplotree branches displayed in the graphic above. On the left are the new branches of the Y DNA haplotree that have resulted from the Big Y DNA tests of several Thibodeaux men. The Y DNA haplogroup branches shown on the chart are downstream from haplogroup R-M269, a sub-clade of Y-chromosome haplogroup R1b. To the right of each branch is an icon symbolizing the colors of France and the earliest country of origin reported by testers for this historic, Acadian Thibodeaux lineage.

While Thibodeaux men descend from Pierre Thibodeaux who was born in France (ca 1631) and married to Jeanne Theriot, the Thibodeaux  men who belong to the FT273461, R-FT273430, and R-FT274342 branches of the Y haplotree, that comprise this particular Big Y DNA research, descend from Pierre's grandson, also named Pierre Thibodeaux (born ca 1724 in Port Royal, Acadia) who married Francoise Saulnier.

In addition, a new branch, R-FT273461, takes root in a Thibodeaux men, recently from Fordoche, and one other Thibodeaux man who more recently descends from Leon Thibodeaux (born in 1819 in St. Landry Parish) who was married to Celeste Margaret Smith. Another Thibodeaux man, who also descends from this same Leon Thibodeaux, awaits Big Y DNA test results.

Downstream is haplogroup R-FT273430, shared by two male descendants of their most recent common ancestor (MRCA) Pierre Cyril Thibodeaux (born ca 1772) who was married to Anna Adelaide Chiasson.  A father and son, who also descend from this same Pierre Cyril Thibodeaux, belong to the next downstream haplogroup, R-FT274342.

Each new branch of the Thibodeaux Y tree gives rise to more questions about ancestry. More Thibodeaux men who descend from Pierre Thibodeaux (born ca 1724 in Port Royal, Acadia) who married Francoise Saulnier, need to have the Big Y DNA test.  If this is your line please contact Acadian Amerindian Ancestry DNA Project administrators to find out how you may participate in Y chromosome and Big Y DNA testing. For more information about the Acadian Amerindian Ancestry DNA Project mentioned in this article, visit: https://www.familytreedna.com/groups/acadian-amerindian/about/background. 

Reference: Y DNA Haplotree: https://www.familytreedna.com/public/y-dna-haplotree/R;name=R-FT273461

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About the Acadian Amerindian Ancestry DNA Project: https://www.familytreedna.com/groups/acadian-amerindian/about/background