Meh it's the whole cajun french thing. That and the reason most people's last names in Louisiana are Tibedeaux or Gilbeaux or Fonteneaux vs the correct spellings is due to the fact that most cajuns were illiterate since cajun french wasn't a written language. They signed the x at the end because when they went to register they didn't know how to spell. It's kind of a history/culture type thing.