I'm not fully certain as to who this “half-breed coureur-de-bois, Pettipas” could be however, I have reason to believe that he may have been a relative of Barthélemy (Bartholomew) Petitpas.
It is important to note that many of the summaries on this site are just drafts that were not initially intended to be shared. It is a work in progress made by amateur researchers with lots of passion.
The purpose of this site is to ensure that correct information is made available in relation to Eastern Metis research, to stop the perpetuation of incorrect/made up "Metis" ancestors by the internet/online trees.