Cécile and Henry Duprey were my aunt and uncle.My mom Maria Dubeau is Cécile's sister and the only info I have so far on the Dubeau family is the same as yours.I do have a contact somewhere in I believe Manitoba who apparently has a lot on the Dubeau, her name is Isabelle.
Her grandmother was my grandfather's sister which makes us cousins and she promised to send me all the info she has on the Dubeau family, I'm still waiting for it but I will send it to you when I get it.
One thing I do have is the whole history of the Hénault family going back to the year 600.Hénault was my grandmother Dubeau maiden name and I was lucky enough to find someone on genforum who had it and was kind enough to send it to me.
I would truly appreciate if you could send me all the information you have on my aunt & uncle's family. I am adding on the the family tree and I need the birthdates and date of deaths of Jacques, Pierrette, René, Jean et Jeannine and their children and grandchildren.
I am also looking for info on my aunt Lucienne and her children, if you happened to have it I would love to get it. Lucienne and Philip Michaud and their children Yvette, Claire, Claude, Lise and I think there might be another one, not sure.
By the way which one of my cousins is your husband's father or mother?