On Marion Smith Matheson's death registration, her parents are given as Angus Smith and Mary Nicholson, both b Scotland. Huron Tsp, Bruce County.
Mary Smith MacKays parents are also given as Angus Smith & Mary Nicholson on her death rego.
No parental information required on Donald Smith's rego.
Gives date as 6 Jan 1885, aged 56.
Could be a different Donald Smith.
I see on IGI that their mother's name is given as Mary MacRitchie. Could she have been married twice?