Thank you so much for your kindness and assistance. You have saved me years of research and I am grateful beyond words.
The entry that Pere Tanguay gives on marriage record of Marguerite Beauchemin dit Pinard to Jean-Baptiste "Picard" is a classica example of our good Msr. Tanguay's sporadic typos! I obtained the original record through microfilm and it is indeed Pinard rather than Picard. The IGI also gives two copies of the record as Pinard.
Does Tanguay give any children for Marguerite Beauchemin dit Pinard and Jean-Bapt Pinard?