i. "Transcipt of the Hucknall Torkard marriage register," transciption database, Society of Genealogists; Page accessed 14 Jan 2020), Entry for George Blacknall & Mary Roebuck.; [Source Record]; Certainty Primary Evidence
ii. "Census Returns of England and Wales, 1911." online database.; Page (accessed 15 Jan 2020), entry for George Blacknell household, Hucknall, Nottinghamshire; [Source Record]; Certainty Primary Evidence