Hi Leslie,
Your Alexandre Briand WAS most probably born at Miquelon, since his parents married there in 1830. According to an article by Stephen White, genealogist at the Centre d'études acadiennes in Moncton, which was published in our journal Le Réveil Acadien (Acadian Cultural Society, Fitchburg, MA), I am sending you some information from that article.
Alexandre was one of three children (of their original 9 children!) who married at Arichat. I presume you have his marriage at Arichat on 28 Aug 1865 to Elizabeth Wolfe, daughhter of Eusèbe & Roslaie (Richard) Wolfe. His parents Pierre-Prospère BRIAND (son of Joseph & Geneviève (Girardin) Briand) married Henriette VIGNEAU (daughter of Joseph & Marguerite (Forest) Vigneau) at Miquelon on 6 Jan 1830. From her marriage record, Henriette was born at Arichat on 20 Nov 1809; and died before 21 Aug 1864. Her father Joseph Vigneau was also born at Miquelon on 23 Jul 1777, the son of Joseph & Madeleine (Cyr) Vigneau. He married at Arichat to Marguerite Forest, the daughter of Simon & Marie-Marthe (Martel) Forest. Basically, this is all I have that relates to your family.
As for procuring a record of Alex's birth at Miquelon, you have to write either to the parish of Notre-Dame de Miquelon for a baptismal certificate, or else to the Departmental Archives of St-Pierre and Miquelon, located at St-Pierre. The address is:
Archives Départementales
Préfecture
BP 4200
97500 SAINT-PIERRE-ET-MIQUELON
If you write, send a check for about $10 (or Euro equivalent, since they now use that currency) and a self-addressed envelope. If you live in the US or Canada, DO NOT put a return stamp on it, since they have their own stamps (printed by France)! Get 2 International reply coupons from your local post office, that they can use in exchange at their post office. Also, check out the St-Pierre and Miquelon site (especially Robert Langlois' genealogy pages) at:
www.st-pierre-et-miquelon.com/Hope all this helps. Dennis Boudreau