Basic Details Surname Slater Forenames William J Gender Male Information stated on memorial Alternative surname Salter Alternative forename William John War Second World War (1939-1945) Served or died Died Primary Service As stated on memorial Unit (Primary - Stated) Royal Observer Corps. Rank / Title (Primary - Stated) Seaborne Observer Our References Service (Primary - Our reference) Civilian Unit (Primary - Our reference) Royal Observer Corps Rank / Title (Primary - Our reference) Observer Death and Burial details Town of death During Operation Overlord Year of death 1944 Manner of death as stated Lost his life Manner of death reference Killed in Action