"Canada Census, 1881," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MVNW-3B7 : 15 December 2020), William T. Henry in household of John S. Henry, Charlottetown, Queens, Prince Edward Island, Canada; from "1881 Canadian Census." Database with images. Ancestry. (www.ancestry.com : 2008); citing John S. Henry, citing Library and Archives Canada, Ottawa, Ontario.