"Ontario Births, 1869-1911," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VNG4-DL3 : accessed 19 January 2016), William Bell, 23 Dec 1888; citing Birth, Scarboro, York, Ontario, Canada, citing Archives of Ontario, Toronto; FHL microfilm 1,846,435.
"Canada Census, 1901," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KHPM-S7Z : accessed 19 January 2016), William Bell in household of Thomas Bell, E, York (east/est), Ontario, Canada; citing p. 2, Library and Archives of Canada, Ottawa.
Thank you to Katharine E for creating WikiTree profile Bell-6227 through the import of andrew thomson.ged on Jun 7, 2013.
It may be possible to confirm family relationships with William by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with William: