Hello Alains. Do you know if Aldege had any brothers and sisters? Catherine's name is listed as Clemence at Planet Quebec.Aldege's dates are listed as 16 Feb 1904 - 17 Apr 1977. One possible connection is, he was from Curran Ont and may have moved to Quebec City. If he was from Curran his Parrents may have been Elzear Osias Sauve and Marie Desrochers.
If you have a connection to this you can find most info at Planet Quebec and Sauve family history site.