Parents: Stewart Laidlaw and Mary Lewis, according to marriage record.
Sources
"Ontario Marriages, 1869-1927," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:KZBG-BRC : 11 March 2018), John Laidlaw and Ida Mcwaters, 11 Feb 1903; citing registration , Watford, Lambton, Ontario, Canada, Archives of Ontario, Toronto; FHL microfilm 1,871,281.
"Ontario Deaths, 1869-1937 and Overseas Deaths, 1939-1947," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:JKHS-BWB : 8 March 2018), John S. Laidlaw, 22 Jun 1931; citing London, Middlesex, Ontario, Canada, 023806, Archives of Ontario, Toronto; FHL microfilm 2,296,534.
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