"England and Wales Census, 1861," database with images, FamilySearch (
https://familysearch.org/ark:/61903/1:1:M7Y9-ZX3 : accessed 24 January 2016), Martin William Kunhardt, Walton, Lancashire, England; from "1861 England, Scotland and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO RG 9, The National Archives, Kew, Surrey.