Sarah was my 3rd Great Grandmother. She was the mother of Emma Butson, who was the mother of George Henry Johnston. She lived her entire life in Canada, in the mid 1800's. Her parents were almost certainly from England, Cornwall, Scotland or Ireland.

The fact that Henry and Sarah were living in Ops Township in Victoria County since at least as early as 29 Aug 1859 (birth there of Susannah) is an anomaly for Henry's family. All of his brothers and sisters either (1) stayed in the Columbus-Brooklin-Oshawa area, which includes Toronto for this purpose, or (2) moved north toward and at Port Perry, or (3) moved west to the Huron Tract (Staffa area). The fact that Henry moved east is unique among his many siblings. So was Sarah from Ops? Is that why they moved east? I don't yet know.

Once Sarah died, Henry moved back west, where he remarried at Reach Township in Ontario County, placing him again in alignment with his siblings. He eventually moved his second family to Detroit, where he died. (Their daughter Emma had moved with her husband John Johnston to Chicago in 1881, which was the first move of the first family to the United States. I am not sure when Mary Jane moved to North Dakota.)