Hi Bes,
Could I suggest that you ask a moderator (Monica is one of the Scotland - Mods) to move this thread to the Canada board in the hope of tracing George and Sarah a little further forward and perhaps finding an Obituary notice for Sarah which would name her parents

The Canada Voters List for 1935 lists all 4 family members - Vaughan Township. York. Ontario.
George Oldfield - Farmer - Nashville RR1
Mrs Sarah E Oldfield Married Woman- Nashville RR1
Miss Doris Oldfield - Spinster - Nashville RR1
Ralph Oldfield - Electrician - Nashville RR1
Sandra