Basic Details Surname Preston Forenames Robin Gender Male Information stated on memorial War Military Service Served or died Died Notes Submarine sank off Alderney, Channel Islands after accident Primary Service As stated on memorial Unit (Primary - Stated) HM Submarine Affray Rank / Title (Primary - Stated) Sub Lieutenant Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) HM Submarine Affray Rank / Title (Primary - Our reference) Sub Lieutenant 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 reference Missing