My name is Patrick Tessier and the original poster on this thread was my sister Natalie. Seeing as she is usually a little slow on the uptake I would like to answer your question.
All the of the people she mention are from Montreal, Quebec, Canada. Everyone who has died from that list has also died in Montreal, Quebec except for Mrs. Beaumier who died here in Florida in 1996.
I have contacted Marc Tessier from the Tessier Family Association who says we are decended from Urbain but I would like to see documents proving this. I do have documents going back to my great grandmother on the Tessier side if anyone is interested in them