i. GRO Indexes; [Source Record]; Certainty Questionable
ii. E-mail correspondence with Paul Blacknell. Privately held by Blacknell, Steve Parry [(E-ADDRESS) FOR PRIVATE USE,] to Paul Blacknell, e-mail<; privately held by Blacknell.; Page 20 Oct 2007>; [Source Record]; Certainty Unknown ('4')
iii. Blacknell, Daniel. Wrexham, Denbighshire. Interview questionnaire by Paul Blacknell. Transcript. Privately held by Paul Blacknell .; [Source Record]