"England and Wales Census, 1901," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:X98X-WNR : 8 April 2016), Mary Griffin in household of Alfred Griffin, Hampstead, London, Middlesex, England; from "1901 England, Scotland and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing Hampstead subdistrict, PRO RG 13, The National Archives, Kew, Surrey.
"England and Wales Census, 1911," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XW2N-4PG : 1 August 2017), Mary Ellen Griffin in household of Alfred Griffin, Hampstead, West Hampstead, London, England; from "1911 England and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO RG 14, The National Archives of the UK, Kew, Surrey.
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