I am looking for my gggg grandfather Pierre Roi, b. 1821 in Saint-Jude. His wife was Native American and named Marguerite ? (this woman is not Marguerite Fradet as I had previously thought). They had a daughter Sarah (King) St. Pierre born 1846 and a son Pierre Roi b. 1848. They moved to the US around 1859 and changed the last name to Roi. they had other kids in the US. Sarah King St. Pierre moved back to Saint-Jude. I'm looking for information on Marguerite and Pierre Sr. Thanks