Professional genealogist Martine Duhamel found the birth record for Étienne Alexis Grasset Latour in the archives départmentales at Bergerac, France when provided with information from Hébert's Southwest Louisiana Records. This record proves that Étienne Alexis' parents were Jean Grasset Latour and Marie Bertrand.

"On the seventh of April 1808, before the undersigned Jean Valeton Bossière, public official of the Bergerac mairie (town hall) of Bergerac, of the fourth arrondissement (subdivision) of the department of Dordogne, appeared Jean Grasset Latour, a military captain pensioner, living in this district, who presented an male infant whose given names are Étienne Alexis.

This same Grasset Latour has declared that the infant was born yesterday 9 in the morning and the infant is the legitimate son of Marie Bertrand, his spouse.

This declaration was made in the presence of Jean Lespinasse, farmer-landowner, and Gabriel Cailloux, employed by the tax office of Bergerac, both of whom has signed with the father as well as myself after having hear the reading of this record."

Brasseaux, Carl. A., The “Foreign French” Nineteenth-Century French Immigration into Louisiana; vol. 1, p. 323 (1820-1839) lists a “Latour, Grace; age 21, occupation: Gunsmith; Native of: France; Ship: James & Isabella; Port of Departure: Bordeaux; Arrival: 13 Dec 1830; destination: New Orleans.” [Possible match]

1850 Census St. Landry Parish Roll 240 Sheet 37 Line 34 lists Alexis Latour, 42, Store Keeper; Catherine, 37; Laure, 10; Emile, 8; Laure, 8; Aurore, 4; all born in France [not true].

Hébert, Southwest Louisiana Records, v.3.: Latour, Alexi de Berjerac, France, 25 yrs old (Jean Grasset & Marie Bertrand) m. 24 Oct 1833 Catherine Doucet, 27 years old (Opel. Ch. v.2. p.47)

Buried in Le Vieux Cimetière, Ville Platte, Louisiana: Headstone: “Ici Repose Alexis Latour, d.c.d. le 15 Mai 1870, âgé de 63 ans.”