John William SIM and his wife Mary Ann WALLACE met and married in Toronto, Canada. John William grew up in Colborne, Ontario and Mary was from Owen Sound, Ontario. They initially immigrated to Rochester, NY where John William's sisters were living. They came to Buffalo about 1899 and owned properties in Batavia, Springville and Owen Sound. George was the first SIM born in the US.
John William worked as an electrician and lineman for a telephone company and it is likely he moved to Buffalo due to his job.