Proof/Documents to support Jeanne Marie Kagigoniac being the daughter of Henri Membertou?

I am a descendant of Jeanne Marie Kagigoniac, and according to this site her father is Henri Membertou. I would like evidence to support this before I add that to my tree though, so is there any specific proof that can support this? If so, where can I find it? Where did you get the evidence?