I realise this is an old post but hope your research has been on going. My GG grandfather is Eugene ROY born in 1815 in Petit Rocher - brother of Antoine. I've been researching my ROY family for over a decade and yours is the first post/connection I've seen for my line. I'm a New Zealander -my G grandfather Francis (Eugene's son) left Canada in 1862 for Western Australia and his son Frank left Western Australia circa 1908 for New Zealand where my father Dudley ROY was born. I've found it difficult to research Canadian family history from this distance but recently, through the Restigouche Genealogical Society, made contact with a very distant and very helpful ROY relative from a different line. He has spent 25 years researching the family and I believe the tree he has shared with me to be quite robust and comprehensive. I would be happy to share it with you if you are still interested.