i. "Census Returns of England and Wales, 1841." online database.; Page (accessed 14 Jan 2020), entry for Joseph Blacknall household, Calverton, Nottinghamshire; [Source Record]; Certainty Primary Evidence
ii. Public Record Office, "Census Returns of England and Wales, 1871"; Page RG10 3611; [Source Record]; Certainty Secondary Evidence
iii. New Brampton (St Thomas) Burials [1832-1974] Backhouse to Bytheway; [Source Record]; Certainty Questionable
iv. Public Record Office, "Census Returns of England and Wales, 1861"; Page RG9 2529 p35; [Source Record]; Certainty Primary Evidence