Basic Details Surname Bilton Forenames William Gender Male Information stated on memorial War Military Service Served or died Died Notes Submarine sank off Alderney, Channel Islands after accident. Bilton listed as a civilian on the Roll of Honour at http://rnsubs.co.uk/boats/subs/amphion-class/affray.html Primary Service As stated on memorial Unit (Primary - Stated) HM Submarine Affray Rank / Title (Primary - Stated) Senior Commissioned Engineer Our References Service (Primary - Our reference) Civilian Rank / Title (Primary - Our reference) Senior Commissioning Engineer Death and Burial details Country of death England Town of death Off Alderney Country of burial At Sea Year of death 1951 Month of death April Day of death 16 Manner of death as stated Killed when submarine sank Manner of death reference Missing