I looked at the sources.
Beaubien-250 source is Rootweb with a book written in 1901 as reference: http://homepages.rootsweb.ancestry.com/~gentner/source/sources1.html#513 ((513. Frank G Beaubien. “The Beaubiens of Chicago”. Illinois Catholic Historical Review, 2 (July 1919), pp 96-106.))
Cuillierier-47 source is a personal tree on Familysearch https://familysearch.org/pal:/MM9.2.1/SRYG-WDX
His father is Cuillerier-dit-Beaubien and his children are Beaubien.
Finally both profiles say in the bio Joseph Cuillerier-dit-Beaubien. I would use Cuillerier and in other last name Beaubien with the full name in the bio (Cuillerier-dit-Beaubien)