i. Calverton, Census, 1871; Page RG10 3494 p4; [Source Record]; Certainty Primary Evidence
ii. E-mail correspondence with Paul Blacknell. Privately held by Blacknell, Jeff Winter [(E-ADDRESS) FOR PRIVATE USE,] to Paul Blacknell, e-mail<; privately held by Blacknell.; Page 16/6/2011>, "Re: Calverton Blacknall,"; [Source Record]; Certainty Secondary Evidence