↑ 1.01.1 "England, Cambridgeshire Bishop's Transcripts, 1599-1860," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QL31-V8RL : 17 March 2018), John Spring, 20 Jul 1845; citing Baptism, March, Cambridgeshire, England, United Kingdom, Cambridge University Library, England; FHL microfilm 2,215,988.
↑ 2.02.1 "England and Wales Census, 1851," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:SGRQ-LSZ : 8 November 2017), John Spring in household of John Spring, Brampton, Huntingdonshire, England; citing Brampton, Huntingdonshire, England, p. 21, from "1851 England, Scotland and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO HO 107, The National Archives of the UK, Kew, Surrey.
↑ 3.03.1 "England and Wales Census, 1861," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M7YV-Z2V : 12 December 2017), John Spring in household of Sarah Spring, Caxton, Cambridgeshire, 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.
↑ "England and Wales Census, 1911," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:X7K8-PT3 : 2 August 2017), John Spring, Caxton, Caxton, Cambridgeshire, 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.