NOTE: It isn't clear how Jean Baptiste Trahan got to Louisiana. He hasn't been identified as a passenger of one of the seven ships that brought Acadians to Louisiana in 1785, he isn't listed with his family; however there are at least two Jean or Jean Baptiste Trahans in the Wall of Names Booklet. It is likely that the marriage year is a mistake. He married in Louisiana 3 Jan 1785, which is before any of "the seven ships" had yet arrived from France. His wife Marie Francoise arrived in Louisiana as an infant in 1765. A birth record for a child named Marguerite Trahan has parents Jean Baptiste - of Liverpool & Marie TRAHAN - of Acadia, and names the grandparents: Pat[ernal]s: Jean TRAHAN & Magdeleine HEBERT; Mat[ernal]s: Michel TRAHAN & Euphroisine VINCENT - all of Acadia, so we can be sure this is the same couple. 
Jean-Baptiste Trahan, fils, eldest son of Acadians Jean-Baptiste Trahan and Madeleine Modeste Hébert of Minas, born in exile at Liverpool, England, on 3 April 1761, would have been repatriated from England to France with his family in the spring of 1763. Perhaps as a sailor or a stowaway, he came to Louisiana by January 1785, when he married cousin Marie Françoise Trahan, daughter of Michel Trahan, at Attakapas.
His wife, Marie Françoise, was born in Halifax, Nova Scotia, where her family had been imprisoned by the British until the end of the war. When the war ended, she came to Louisiana with her family (and the Beausoleil party) in 1765. They settled on the Vermilion River and had five known children. Their daughters married into the Duhon and Simon families. Marie's succession record was filed at the Vermilionville courthouse, present-day Lafayette Parish, in June 1832; she would have been in her late 60s that year.
Jean-Baptiste, fils remarried to Françoise Pitre, daughter of fellow Acadian Modeste Pitre, and thrice-widowed (of Joseph Trahan, fils, Jean-Joachim Desormeaux, and Pierre Labombarde, fils), in a civil ceremony in Lafayette Parish in November 1832; he was 71 years old and she was 68 at the time of the wedding. Needless to say, she gave him no more children.
Jean-Baptiste Trahan died in Lafayette Parish in June 1840; he was 80 years old. His was the only line of his father's family to survive in Louisiana; his younger brothers, who came to Louisiana from France in 1785 and married and settled in the Attakapas District, produced no sons who had sons of their own. Though Jean Baptiste had at least five sons, only two of them seem to have created families of their own, so the survival of his line was precarious.
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Jean Baptiste is 20 degrees from Marie Curie, 31 degrees from Svante Arrhenius, 18 degrees from George Beadle, 23 degrees from Bjørnstjerne Bjørnson, 22 degrees from Lawrence Bragg, 16 degrees from Pearl S. Buck, 17 degrees from Sinclair Lewis, 18 degrees from Guglielmo Marconi, 16 degrees from Albert Michelson, 19 degrees from Gerty Cori, 18 degrees from Roger Sperry and 13 degrees from Chris Ferraiolo on our single family tree. Login to find your connection.