Hi : Time Frame means what Years -
You know where Oliver and Audery / Audrey REID - passed away?
Do you know if they were born in the Province of Alberta Canada.
Do you know When they were married ?
When your parent - and their brothers / sisters were born ?
The Cemetery where your Grandparents are buried might be able to help with some information.
They will know the name of the Funeral Home or Undertaker who handled the Funeral.
Funeral Home - might take personal information - that is required for a Registration of Death.
This will show Date and Place of Birth - Names of both parents of the person who passed away - Including the maiden name of the mother.
REGISTRATION of Death - from Govt of Alberta Vital Statistics Registry office in Edmonton
The cost is about $40 - so best to ask funeral home - to see if they an help with some information.