Something else that Azizi might be able to research is whether it is correct to refer to the Louisian language as french.
I was talking to a frenchwoman on a different topic a few months ago, she mentioned that many of the people crossing the atlantic were from the areas of Brittany down to Poitou, and that while their national identity was French, their language was not the "proper" french of the court and government.
(the Oxford illustrated history of france states somewhere that in the early 19th century a quarter of French nationals spoke regional patois and had difficulty understanding proper French).
It should be possible to find a dictionary of modern/revival Breton, no idea if there is a source for Poitouvan, and of course there might be significant changes from the language of colonial times.
Good luck, hope you can find some links.