"England and Wales Census, 1901," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:X95C-DF6 : 8 April 2016), Jack Wrigley in household of John W Wrigley, Dalton, Yorkshire (West Riding), England; from "1901 England, Scotland and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing Almondbury subdistrict, PRO RG 13, The National Archives, Kew, Surrey. - Jack Wrigley dans le foyer de John W Wrigley, "England and Wales Census, 1901"
https://familysearch.org/ark:/61903/1:1:X95C-DF6