I mentioned this on the Ancestry.com discussion boards and got some very interesting help and commentary from several users.
At the time of the previous posting, I was convinced that the problem was just an imperfect set of data: basically, she wasn't recorded with enough definition to make as "easy" of an identification as most of the other people in the tree.
Thanks to daciodan (who also turned me on to the LaFrance site), it appears that her parents are NOT Moïse Boulé and Basilice Bernier - at least they're not her "official" (birth/legitimate) parents but there DOES appear to be some (un-ascertainable) connection. That leaves (broadly) two options:
- she was illegitimate;
- she was adopted.
Another mystery is that she sometimes appears under the surname "LaLiberté" which isn't a 'dit' name for Boulé, but a search of the "Lotbinière metro area" under LaLiberté doesn't provide any concrete leads, ALTHOUGH - once again - there appears to be some potential connection to a LaLiberté family who at least at one time lived near the Boulé family. Perhaps the illicit relation was between a Boulé and a LaLiberté?