I'm wondreing what you want exactly: Information concerning Ludger Francoeur or his sister.
I have 2 sisters and one brother of your father, but no Thomas Gauthier in my data base. I Know also that your grandfather, Dassylva had 9 married brothers and sisters.
If I can help you, let me know.
I would appreciate if you could give me the names of Ludger's children and their families because I don't have any of them (Names, first names, dates of birth, Marriages dates and parishes, grand children. Thamk you for your help.