| Date | Kind | Details | |
|---|---|---|---|
| 11 Nov 1962 | Birthii | Place | Cefn-Y-Bedd, Flintshire |
1. Studied Llay Infants,Junior. Darland School Rossett. St Catharines College Cambridge reading Mathematics. Completed PhD at Sheffield while working for Marconi. Transferred to the Defence Research Agency at Malvern.; [Note Record]
i. Research by Ronald Blacknell [208]; [Source Record]
ii. General Register Office, Southport; Page entry for David Blacknell, volume 8a, page 477, Q4 quarter;; [Source Record]; Certainty Secondary Evidence