Ambroise dit Barnabe Martin was born on September 5 1706 at Port Royal Acadia (Annapolis Royal, Nova Scotia, Canada) and baptized on the 26th of that same month. 
He married twice. Around 1732 he married Anne Cyr, daughter of Pierre Cyr and Claire Cormier. They had a son Joseph dit Barnabe, who eventually migrated to Louisiana.
Around 1741 Ambroise married Emilienne Comeau, daughter of Jean Baptiste Comeau and Anne-Marie Thibodeau.
Ambroise Barnabe was found in Malpec, Isle St. Jean in 1752. He was listed as a widower, age 49 years, and had been there since 1742. Where was his second wife, as he was married in 1763 when he was at Halifax. 
He and his family (6 of the children) were held prisoner in Halifax in 1763.
It is not certain where Ambroise died.
Some trees has him dying in Louisiana but no source provided. His name could not be found in the Wall of Names Booklet published by the Wall of Names at the Acadian Memorial committee, St. Martinville, Louisiana, nor on their website.Ambroise Barnabé Martin dit Barnabé
↑ 1.01.11.21.3 White, Stephen A., Patrice Gallant, and Hector-J Hébert. Dictionnaire Généalogique Des Familles Acadiennes. Moncton, N.-B.: Centre D'études Acadiennes, Université De Moncton, 1999, Print, p1133.
↑ Nova Scotia Archives, "An Acadian Parish Remembered - The Registers of St. Jean-Baptiste, Annapolis Royal, 1702-1755," register RG 1 volume 26 page 53; online database with images,Baptism
Justinien Durand Priest; 26 September 1706 Baptism of Ambroise Martin born 15 September 1706, baptised by Sebastien Brau; René Martin dit Barnabé Father; Marie Meunier Mother; Jean Brau and Marie Prejean daughter of Jean Prejean, wife of Antoine Tibodeau Godparents
↑ Compiled by Milton P. Rieder, Jr. & Norma Gaudet Rieder Title: ACADIAN CHURCH RECORDS VOL 2 Beaubassin 1712-1748 Publication: Name: Copyright 1976, 1457 Poinsetta Drive, Metairie, Louisiana, USA;
↑Report Concerning Canadian Archives for the Year 1905, Volume II (Ottawa: Printed by S.E.Dawson, 1905), 1752 La Roque Census The original census, in French, can be found at Census Original Version “Recensement de l'Isle Royal et de Isle Saint-Jean ” Images XX
Ambroise Barnabé, widower, ploughman, native of l'Acadie, aged 49 years, he has been in the country ten years.
He has seven sons and two daughters:
Ambroise, aged 18 years. Joseph, aged 16 years. Michel, aged 14 years. Pierre, aged 12 years. Jean, aged 10 years. François, aged 6 years. Paul, aged 4 years. Marguerite, aged 19 years. Marie, aged 8 years.
In live stock they have two oxen, one cow, one heifer, one wether, seven ewes, and five pigs.
He holds his land under a grant made by Messieurs Duchambon and Dubuisson under date the ____,___, 1742, and homolgated by Messieurs the Governor and the Intendant Commissary of Ile Royale. He has made a clearing on it, and sown sixteen bushels of wheat, one bushel of oats, one bushel of peas, and has ploughed land sufficient for the sowing of thirty-two bushels besides./blockquote></li>
↑ Lucie LeBlanc Consentino. List of Acadian Prisoners at Halifax, August 12, 1763, Acadian & French Canadian Ancestral Home, original record, digital images, Héritage, Genealogy collection, Library and Archives Canada. / France. Fonds des Archives nationales: Série C12. Correspondance générale; Saint-Pierre et Miquelon : C-9146, vol. 1, f. 22-26. Images 33-47, accessed 11/29/2020</li>
↑ Jehn, Janet, ACADIAN EXILES IN THE COLONIES: Page: 254
EnbeRoise Martin, his wife, 6 children, 8 in the family
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It may be possible to confirm family relationships with Ambroise by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA test-takers in his direct paternal line.
Mitochondrial DNA test-takers in the direct maternal line: