Dear Ms. Fletcher,
Thank you for posting your request on History Hub!
We suggest that you review the National Archives Resources for Genealogists website for guidance on how to begin your family research. We also suggest that you review the FamilySearch research wiki for Louisiana Genealogy and consult these unofficial sources Louisiana Creole; What is Creole?; and The Louisiana Creole for definitions of Louisiana Creole.
We hope this is helpful. Best of luck with your family research!