Records from the Library and Archives of Canada include Veterans Death Cards: First World War (see the search help file for an explanation).
William S. Cameron died in Windsor, Ontario, on August 8, 1963.
Image 697 (See below)
Per card: Sister, Mrs. Beatrice C. Jones, lived at 19990 Clairview Court, Grosse Pointe Woods, Michigan, USA.
Beatrice Jones: Social Security Death Index (SSDI) Death Record
Name: Beatrice Jones
State of Issue: Michigan
Date of Birth: Thursday October 30, 1890
Date of Death: December 1976
Last known residence:
City: Grosse Pointe....
County: Wayne State: Michigan
Ontario, Births and Baptisms, 1779-1899
Name: Olive Beatrice Cameron
Birth Date: 30 Oct 1890
Birthplace: Harwich Township, Kent, Ontario
Father's Name: William Cameron
Mother's Name: Saloma Lowes
Name: Vinton Earnest Jones
Event Type: Marriage
Event Date: 26 May 1915
Event Place: Blenheim, Kent, Ontario, Canada
Father's Name: Thomas Jones
Mother's Name: Elizabeth Coulter
Spouse's Name: Beatrice Salome Cameron
Spouse's Age: 24
Spouse's Father's Name: William Cameron
Spouse's Mother's Name: Salome Lowes
NOT RELATED; no further information