Claire, thank you so much for check these.
I do have records (have seen) on Helene, Guillaume and the marriage for Pierre to Sarah McCalvey. The ones I have viewed do not mention an Edwidge as the mother but as the godmother. In Pierre & Sarah Mc Calvey's marriage at St. Chrysostome, it indicates Pierre's mother as Marie Legault dit Deslauriers. The thing is Claire for the same time period there was a Pierre Blais m. to Edwidge Deslauriers and a Pierre Blais m. to a Marie Legault dit Deslauriers. I realize Marie was given to most women baptisted in French Canada, but these two are seperate families. Probably cousins and sisters. No marriage has been found on either Pierre to prove their ancestry.