Basic Details Surname Roos Forenames Gustaf Oscar Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Unit (Primary - Stated) York and Lancaster Regiment Rank / Title (Primary - Stated) Captain Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) York and Lancaster Regiment Rank / Title (Primary - Our reference) Captain Death and Burial details Town of death Somme Town of burial Freincourt Cemetery Cemetery Year of death 1916 Month of death July Day of death 1 Manner of death as stated Killed Manner of death reference Killed in Action