The Rootsweb Quebec-Research mailing list is having quite a discussion about this very subject today. Check http://archiver.rootsweb.com/th/index?list=quebec-research FYI - the surname Ladouceur has more than one dit name. The P.R.D.H. lists over 70. http://www.genealogy.umontreal.ca/en/ Here in the Penetanguishene RC church records the two parties in your query are referred to as "Ladouceur" and "Lafleur" - no dit names. Pam