"Canada Census, 1881," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MVD6-QXY : 2 March 2021), Burton S. Harris in household of Elmor B. Harris, St. Thomas, Elgin, Ontario, Canada; from "1881 Canadian Census." Database with images. Ancestry. (www.ancestry.com : 2008); citing Elmor B. Harris, citing Library and Archives Canada, Ottawa, Ontario.
"Canada, Ontario Marriages, 1869-1927," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KZBN-TKS : 8 March 2021), Barton S Harris and Annie O M Parsons, 16 Apr 1902; citing registration , Toronto, York, Ontario, Canada, Archives of Ontario, Toronto; FHL microfilm 1,871,082.