 The Flag of Acadia Past President of the Acadian Memorial, Marty Guidry, related some sad news about our late, Acadian cousin Paul Lewis LeBlanc whose last home was in Ascension Parish, Louisiana:
"Unfortunately, today I learned that Paul LeBlanc passed away on August 24, 2022. He had been in a full-care nursing home for over a year and died from complications of several health issues that he had during the past year." Paul Lewis LeBlanc, as many may recall, was keenly interested in the use of DNA to verify genealogical lines and, ever since I've known him (which was from about 2006 on), Paul was always happy to share his knowledge and research. Paul participated in and led a number of popular mail-lists and groups about genealogical subjects as well and I had the opportunity to meet him, face-to-face, when he attended one of my presentations in Louisiana. With Paul's permission, I had published an article about his surname line, which he had traced, and documented, from himself, to his father, and then to his father, and his father -- all the way back to Daniel LeBlanc of Acadia (b. ca 1626). He did this in conjunction with his Big Y DNA test results he had received in October of 2020. He was pleased to discover that he could prove his line genealogically and also through his Y DNA test results, which matched those of other men who shared his same patrilineal ancestor, Daniel LeBlanc, b. ca1626. Needless to say, I was very delighted (and somewhat relieved) to report that Paul LeBlanc's Y chromosome DNA matched with the Y chromosome DNA results, and the Y DNA haplogroup, established for other LeBlanc men who descended from Daniel LeBlanc. When you are dealing with a genealogist whose Y chromosome DNA is so tightly intertwined with his esteemed Acadian surname lineage, and so, his very soul, as was Paul's, waiting for a Y DNA test result to come in can be an anxious affair! Sometimes, we have a brief opportunity to hear a story and we have to take it down, and publish it, while it's there in front of us. This is precisely what happened with Paul. Paul gave me one shot to send his Y chromosome DNA sample off to Family Tree DNA for the Advanced Big Y 700 DNA test (done!) and then one more, very brief opportunity to publish some notes about his family history (and we did that too!). As we called for contributions from the Acadian genealogy community so that we could fund Paul's Big Y 700 DNA test, and later worked together to document his line, I felt like I was led by a guiding hand -- and Paul's insistent urging. Looking back, I believe Paul knew that time was of the essence. And so, we have the following article that resulted from these efforts (You are welcome to share the article as I had permission from Paul to do the same): https://dna-genealogy-history.com/travel-by-ancestry/travel-by-ancestry-to-the-big-y-dna-signature-r-ft55255-for-the-lineage-of-acadian-ancestor-daniel-leblanc-b-ca-1626 Since the article was published, we have gained over 2050 members in the Acadian Amerindian Ancestry DNA project (the image in the article is old), and we have extensive updates to the Y DNA "tree." While the work continues with more Big Y 700 DNA kits ordered for our project members just this week, the genealogy that comprises Paul LeBlanc's story, as written, remains constant, and this post is going to be one of the places where Paul Lewis LeBlanc is honored and remembered, and I do so tonight. May you rest in peace, Paul Lewis LeBlanc, b. 1946, d. 2022. From your cousin in Acadian Genealogy, --Marie Asse'lia Rundquist  Marie Rouensa descendant, Amy Meyer Traditional mitochondrial DNA research of known matrilineal lines of descent from an earliest ancestor, Marie Rouensa, takes on a new dimension as autosomal DNA matches among descendants, shared segment triangulations, and most recent common ancestors are identified.
The subject of Marie Rouensa's fascinating history, and the C4c1 haplogroup finding first discovered for Rusty Petitjean, along with his matrilineal line of descent from Marie Rouensa, in November of 2020 by our Acadian Amerindian Ancestry DNA project, were topics of conversation among the St. Landry Smith genealogy group members. The St. Landry Smith project had been started by Amy Meyer, a known descendant of Marie Rouensa. Deadra Doucet Bourke, who also participates in the group, shared the news about the discovery of Rusty Petitjean's matrilineal line of descent, since proven, from ancestor Marie Rouensa nearly two years ago. While Amy had formed the Smith project to research a Smith surname lineage from St. Landry, Deadra's story about mtDNA matches among matrilineal descendants of Marie Rouensa piqued her interest. Amy wanted to know more about the C4c1 mtDNA haplogroup subclade identified by Full Sequence mitochondrial (mtDNA) test results of two of her descendants, Robert Franklin and Rusty Petitjean. As Deadra explained project findings, Amy began to wonder if her mtDNA test results would qualify her as a member of the same C4c1 mtDNA haplogroup subclade to which Rusty and Robert belonged. Amy knew about her genealogical line of descent from Marie Rouensa, as did Robert Franklin before he had his mtDNA test. What would her Family Tree DNA Full Sequence mtDNA test results reveal? Unable to contain her excitement, Amy announced that she too was a descendant of Marie Rouensa! Pleasantly surprised, Deadra immediately shared a link about Rusty's line of descent from Marie Rouensa. (See: https://familyheritageresearchcommunity.org/rouensa-dna for the initial article and project updates). After reviewing the article, and scanning the lines that were posted for Marie Rouensa's matrilineal DNA descendants, Rusty and Robert, Amy was confident that her Full Sequence mtDNA test results would be in line with Rusty's and Robert's, and she has since been proven correct. All three Marie Rouensa matrilineal descendants belong to the C4c1 subclade and are exact matches with one another. Matching mitochondrial (mtDNA) test results for Amy, Robert, and Rusty may be referenced in the Acadian Amerindian Ancestry DNA Project. (See: https://www.familytreedna.com/public/AcadianAmerIndian?iframe=mtresults). Amy had already established her genealogy leading to Marie Rouensa through her own research, information contributed by a cousin, and Father Vidrine's tireless efforts in the realm of Marie Rouensa's family history, and had the Full Sequence mtDNA test and joined our project to honor and acknowledge the part that Marie Rouensa plays in her genetic makeup. Amy Meyer's genealogy, as follows, has been researched, scrutinized, and qualified so that other matrilineal descendants of Marie Rouensa may confidently connect to her line of descent: 1. Amy (C4c1) Singleton Meyer 2. Mother (C4c1) / Father 3. Edna (C4c1) Manuel / Hubert Paul Smith 4. Hermance (C4c1) Veillon / Leo Manuel 5. Edna (C4c1) Attale / Michael Veillon 6. Marie Ida (C4c1) Tate / Homer "Henry" Attales 7. Onesima (C4c1) Tate / William Tate 8. Eugenie (C4c1) Fontenot /Hilaire "Elie" Tate 9. Eugenie (C4c1) Soileau / Henri "dit Bellevue" Fontenot 10. Marie Jean "Marianne" (C4c1) Vidrine / Jean Baptiste "Richaume" Soileau 11. Elizabeth (C4c1) de Moncharvaux / Capt. Jean Baptiste de Vidrine 12. Marie Agnes (C4c1) du Chassin / Capt Jean Francois Tiserant de Moncharvaux (most recent common ancestor (MRCA)) 13. Anges (C4c1) "dite Philippe" Estienne / Nicolas Michel du Chassin 14. Marie (C4c1) "Ouacanteoua" Rouensa / Capt Michel "dit Philippe" Estienne 15. Marie Jeanne (C4c1) Indigenous Woman / Chief Francois-Xavier "Mamenthousena" Rouensa (earliest mtDNA-proven ancestor) Comment from co-author Deadra Doucet Bourke: Robert and Amy's ancestry comes together with Eugenie Soileau and Henri Fontenot (generation 9), Robert's through daughter Josephine, while Amy is through daughter Eugenie. All three come together on Marie Agnes du Chassin and Captain Jean Francois Tiserant de Moncharvaux (generation 12). Comment from co-author Marie Rundquist: Research continues to highlight the matching, and genetic relationships that may be derived by comparing members' mtDNA and autosomal DNA test results. Autosomal DNA comparisons will therefore continue to feature in our mtDNA project research. Comparisons among Amy's, Robert's and Rusty's autosomal DNA results, at a minimum of 5 cm, have yielded the following findings (Note: Amy had submitted her mother's autosomal DNA test results (from the same matrilineal line) used in this comparison): Comparisons of Amy's and Robert's autosomal DNA test results at a minimum of 5 cm Largest segment = 16.3 cM Total Half-Match segments (HIR) 36.1cM (1.006 Pct) Estimated number of generations to MRCA = 4.3 4 shared segments found for this comparison. 178930 SNPs used for this comparison. 50.653 Pct SNPs are full identical Comparisons of Amy and Rusty's autosomal DNA test results at a minimum of 5 cm Largest segment = 6.3 cM Total Half-Match segments (HIR) 27.4cM (0.765 Pct) Estimated number of generations to MRCA = 6.5 5 shared segments found for this comparison. 146089 SNPs used for this comparison. 52.184 Pct SNPs are full identical Comparisons of Rusty and Robert's autosomal DNA test results at a minimum of 5 cm Largest segment = 11.1 cM Total Half-Match segments (HIR) 76.2cM (2.123 Pct) Estimated number of generations to MRCA = 3.8 12 shared segments found for this comparison. 422218 SNPs used for this comparison. 70.215 Pct SNPs are full identical From the ISOGG.org Wiki, we read, "In autosomal DNA testing the term triangulation is most commonly used to describe the process of reviewing the pedigree charts of clusters of shared matches/in common with matches in order to identify a common ancestor or ancestral couple. This process is sometimes also known as tree triangulation." (See: https://isogg.org/wiki/Triangulation). In a near-perfect demonstration of the definition of triangulation, a comparison of Amy's, Rusty's and Robert's autosomal DNA yield a triangulated, 5.1 cm, shared segment, on Chromosome 1. Since hearing about the Marie Rouensa story, and the descendants who have had DNA tests to prove their lines that lead to her, Amy's cousin wants to find out more about the project and the journey of discovery that comprises the DNA test results, genealogies, and family histories that are needed to validate an ancestral line. The Acadian Amerindian Ancestry DNA project co-administrators invite all matrilineal descendants of Marie Rouensa to have the Full Mitochondrial Sequence mtDNA test from Family Tree DNA and to join our project! Click https://www.familytreedna.com/groups/acadian-amerindian/about to join! -- by Marie Rundquist, Deadra Doucet Bourke, with Amy Meyer Link to: https://dna-genealogy-history.com Link to: https://familyheritageresearchcommunity.org/rouensa-dna Link to: Rundquist, M., Bourke, D.D. (2020, November 1). Full Article: https://dna-genealogy-history.com/uploads/3/4/0/9/34098671/petitjean-serendipitous_c4c1_mtdna_finding-final.pdf  Brian L. Doucet Brian Doucet of Nova Scotia Canada has participated in the C-P39 Haplogroup and the Acadian Amerindian Ancestry DNA Projects since 2011. Following Keith Doucet's earliest, confirmed Y DNA test results, in 2008, which first revealed a Native American haplogroup for descendants of Germain Doucet b. 1641 through son Laurent, (see Confirmed C3b Y DNA Test Results Test the Heritage of Cajun Cousin Keith Doucet), Brian, who traces his lineage to Germain Doucet b. 1641 through son Claude, was among the first of the Doucet men from Nova Scotia to participate in the Germain Doucet b. 1641 Y DNA study. The early days of Y DNA testing to prove the Native American lineage of Germain Doucet b. 1641 were interesting times, to say the least. In 2011, when Brian had his Y DNA test along with other Doucet men, genealogists were only just beginning to discover the benefits of Y DNA testing to research a surname line and few in the field knew much about it. In 2011, even fewer comprehended how it was possible that a hidden Native American lineage for Germain Doucet b. 1641 had been uncovered through Y DNA testing! After all, it was (at the time) "settled genealogy" that he descended from Germain Doucet, Sieur de La Verdure of France, right? Certain genealogists did, however, understand the implications of the then-controversial Y DNA findings for male descendants of the Germain Doucet b. 1641 line. One genealogist in particular, Paul Tufts, of Nova Scotia, who has an extensive background in the biological sciences, was instrumental in getting the word out about the Germain Doucet b. 1641 Y chromosome DNA study. During those early days of Y chromosome DNA testing to prove the Native American origins of this line, Paul would meet face-to-face with male descendants of Germain Doucet b. 1641 (who were, after all, friends and neighbors!) and he told them about the project, answered their questions, and convinced them to have the tests. Brian was among the first of the Doucet men in Nova Scotia to volunteer to have his Y DNA tested, and to share his results. Brian wondered if his Y DNA test results would show that he too belonged to what was then called the C3b haplogroup (now called C-P39), as did other Doucet men who traced their patrilines, from father-to-father, to Germain Doucet b. 1641. Brian's Y DNA test results, and his close, Y chromosome DNA matches with other Doucet men, who traced their lines to the same common ancestor, Germain Doucet b. 1641, proved that he did. Brian has since had additional testing that qualified his membership in the C-P39 Y DNA haplogroup, as have other men who trace their patrilines, from father-to-father, to Germain Doucet b. 1641. Fast-forward to the summer of 2022 when Brian, after having read about the latest advances within the "Doucet DNA" project, emailed DNA project manger, Marie Rundquist, and gave her permission to share his story and his genealogy (through Germain Doucet b. 1641's son Claude). In the same email, Brian also reflected upon his pivotal role in a 2012 White Paper that detailed project findings: Quoting from a White Paper Marie had written in 2012, "C3b Y Chromosome DNA Test Results Point to Native American Deep Ancestry, Relatedness, among United States and Canadian Study Participants," Brian shared in his correspondence, "I have to admit it was an odd (in a good way) feeling when I had read through the report and came upon my results being utilized: "Results of representative test kit 219075 (Doucet) were analyzed against thirteen others in the study. As illustrated in the MRCA % Probability Chart for kit 219075, when one Doucet descendant’s results are compared against thirteen other study participants, the highest probability for sharing a common ancestor at twelve generations -- a genealogically relevant timeframe - is greatest among Doucet surname descendants ..." Brian's remark highlights how one set of Y DNA test results (his), identified only by a kit number and the Doucet surname, were instrumental in (1.) establishing, by comparison with other Y DNA test results in the project, a First Nations / Native American lineage of male descendants of ancestor, Germain Doucet b. 1641, and (2.) helping to refute any possibility of a genetic, father-son relationship between Germain Doucet Sr., founder of Acadia, and Germain Doucet b. 1641 of Port Royal, Nova Scotia. By 2017, only after dozens of male, patriline descendants of Germain Doucet b. 1641 had added their matching Y chromosome DNA test results to the project, were the following outcomes firmly established for the Germain Doucet b. 1641 Y chromosome DNA study: The discovery of a Native signature for descendants of Germain Doucet b. 1641 by our projects (the first descendant of this line having tested with the Acadian-Amerindian DNA project in the Summer of 2008) had great significance for the descendants of Germain Doucet b. 1641 because the Native Y DNA signature attained for this line (1) disproved a European ancestry for Germain Doucet b. 1641, (2) disproved a father-son relationship between Germain Doucet b. 1641 and Germain Doucet Sr. of France and (3) disproved that Pierre Doucet (b. ca 1621) and Germain Doucet (b. 1641) were blood brothers having descended from the same father. Brian Doucet graciously shares his own Nova Scotia lineage to Germain Doucet b. 1641 through son Claude, tracing his line from father-to-father, beginning with himself. Brian provides the following names of each of his patriline ancestors (all Doucet men) and their spouses for each generation: Germain Doucet (b. 1641) + Marie Marguerite Landry Claude “dit Maitre Jean” Doucet + Marie Comeau Joseph Doucet + Anne Agnes Surette Michel Doucet + Marie Suzanne Mius David “le Grand” Doucet + Isabelle Mius Jean Robert Doucet + Marie Henriette Saulnier Alexandre “Killick” Doucet + Marie Jane Newman Alexandre “Sandé” Doucet + Catherine “Katie” Comeau Alfred “Fred” Doucet + Cecile Comeau Brian Louis Doucet Combining inputs from the Family Tree DNA Y-DNA database, ancient DNA, the Time to Most Recent Common Ancestor (TMRCA) algorithm, Dr. Carlos Quiles' research, the work of phylogeneticist Michael Saeger, population genetic studies worldwide, Family Tree DNA group projects, the Genographic Project, and the community, the Discover tool, trademarked by Family Tree DNA, references a target haplogroup label; e.g., C-P39 or other, which the user may search using a query form (see https://discover.familytreedna.com/).
The Family Tree DNA Discover tool (amazingly) projects the timeframes for the date of birth of an earliest known patrilineal ancestor, traced from father-to-father, who belonged to that same haplogroup and the tens of thousands of years that may have elapsed between upstream and downstream branches of his line. For example, the Discovery tool estimates that the first ancestor who belonged to Haplogroup C-Z30754 would have been born approximately 400 years ago (check!). Then, it provides estimated timeframes between intervening Big Y 700 branches, defined by leading SNPs (or markers) that separate C-Z30754 from the root, C-P39 Y DNA haplogroup that is estimated to have branched off from its parent subclade, some 11,000 years ago, plus or minus 2,100 years. Explore the features, referencing haplogroup C-Z30754, the signature, Big Y 700 DNA haplogroup attained for the descendants of Germain Doucet b.1641. Click: https://discover.familytreedna.com/y-dna/C-Z30754/story For information about the ground-breaking finding of Native American ancestry in the Doucet lineage tracing to Germain Doucet b. 1641 in 2008, and a chronology of Y DNA project updates, read the article, "Confirmed C3b Y DNA Test Results Test the Heritage of Cajun Cousin Keith Doucet" ...by Marie Rundquist with Keith Doucet. Thanks to all members for your participation in the C-P39 Y DNA Project, the Acadian Amerindian Ancestry DNA Project, and thanks also to the vast numbers of men who have taken the Big Y 700 DNA test, including the male descendants of Germain Doucet b. 1641. Your test results were immensely helpful in producing these estimates!!! |
Marie Rundquist, Author
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DNA Genealogy History, LLC is a registered S Corporation with the State of Virginia and the Federal Government since 2017, is a retailer and distributor of books and digital publications, and is certified, authorized and empowered to collect Sales and Use Tax for the Commonwealth of Virginia.
E-Mail Your Comments to marierundquist@gmail.com
This website is not intended for users located within the European Economic Area.