Basic Details Surname Clasen Forenames William Gender Male Information stated on memorial War Second World War (1939-1945) Served or died Died Primary Service Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) The Royal Sussex Regiment Rank / Title (Primary - Our reference) Private Death and Burial details Country of death France Town of burial St Omer Cemetery Longuenesse Souvenir Cemetery Year of death 1940 Month of death May Day of death 31 Age at death 29