"Canada Census, 1881," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MVFY-HXN : 11 March 2018), John McWilliams in household of Alexander McWilliams, Burford, Brant South, Ontario, Canada; citing p. 33; Library and Archives Canada film number C-13263, Library and Archives Canada, Ottawa, Ontario; FHL microfilm 1,375,899.
"Ontario Marriages, 1869-1927," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FMNT-LN4 : 11 March 2018), John W Mcwilliams and Nettie Mcirvine, 29 Jun 1881; citing registration , Burford, Brant, Ontario, Canada, Archives of Ontario, Toronto; FHL microfilm 1,869,509.