Hi Diane; Don't know if have received this answer to your question on aboriginal connection to Vitaline Perreault.
Her grandmother, (Norbert's mother) Marie Charron Ducharme is reported to be from the Saulteau tribe but that is certainly NOT supported by the following two researchers.
In the Genealogy of the First Metis Nation by Sprague and Frye, Norbert's parents are listed as follows: "Perreault, Jean Baptist, European, born 1799 in Upper Canada married Marie Ducharme, European, born 1804 in Upper Canada."
So by that account, the Aboriginal enters into the family by way of Marie Monique Hamelin, Metis, whose parents are both listed as being Metis.
A search in Gail Morin's "Metis Families" reads as follows: "Jean-Baptiste Perreault; born 25 Dec 1799 Lanoraie (MBS, C-14932); married Marie Charon dit Ducharme, daughter of Francois Charron dit Ducharme and Marie Louise Rivet, before 1823. He immigrated in 1815 to Red River (ibid). He was a farmer on 9 Aug 1875 Ste. Anne." and "Francois Charron dit Ducharme; born and baptized 23 Jan 1773 Berthierville (Wayne Paquin Research, 6 Jan 1998);married Marie Louise Rivet, daughter of Louis Rivet and Madeleine Laperche, 7 Jan 1805 St-Paul-de-Joliette (ibid, 29 Dec 1997)."
While a marriage in Quebec doesn't preclude the fact that there MAY be some aboriginal in Norbert's family, but it certainly does reduce the odds.