It appears that Rosella's married name is Thibert.
http://www.pinchercreekecho.com/2011/03/11/echoes-from-the-p...Echoes from the past , week 10, 2011
50 years ago - 1961
Mr. and Mrs. Gus Schambron had the misfortune of breaking through the ice with their jeep. They escaped unharmed and only a little wet. With the help of neighbours they managed to get the jeep out with tractors.
http://www.pinchercreekecho.com/2007/01/25/echoes-from-the-p...Thursday, January 25, 2007 10:00:00 MST AM
50 years ago - 1957
The home of Mr. and Mrs. Joe Thibert was the scene for the golden anniversary celebrations of Mrs. Thibert's parents, Mr. and Mrs. G. Schambron. After a delicious supper, Mr. H.B. Smith, who had known the couple longer than anyone present, on behalf of the community, presented them with an electric frying pan.
http://newspaperarchive.com/ca/alberta/lethbridge/lethbridge...Lethbridge Herald, Friday, November 5, 1965, Page 16
Obituary for August (Gus) Schambron indicates his wife and daughter but doesn't mention any grandchildren.
http://www.pinchercreekvoice.com/2013/06/livingstone-ladies-...Shows Rosella Thibert's quilt