i. "Marriage register for the parish of Woodborough in Nottinghamshire covering 1837-1901," transciption, Society of Genealogists; Page accessed 13 Jan 2020), Entry for Richard Blacknell & Elizabeth Pike.; [Source Record]; Certainty Secondary Evidence
ii. Public Record Office, "Census Returns of England and Wales, 1861"; Page PRO RG9/2444 f14 p21; [Source Record]; Certainty Primary Evidence