Hi, Do you have a Date of birth or age for Thomas SIDEY ? for Mabel
Do you know the date of death for Thomas SIDEY - dcd mid 1950's
REGISTRATION of DEATH / Long Form Death Certificate
will show the maiden name of the spouse.
Do you know When ? Where Thomas SIDEY and Mabel ? - were married
REGISTRATION of MARRIAGE - Long Form Marriage Certificate
Will show Names of Both sets of Parents - including the Maiden names of the mothers - Place of birth of parents - This info comes directly from the bride and groom
Ontario Cemetery finding aid - finds the following - Perhaps ?
SIDEY, Mabel Cem: Lakeview, Sarnia County: Lambton Township: Sarnia Ref.LB-197-2
OBITUARIES may be helpful