Basic Details Surname Palmer Forenames Derek William Onslow 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) East Yorkshire Regt Rank / Title (Primary - Stated) Lt Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) East Yorkshire Regiment Rank / Title (Primary - Our reference) Lieutenant Death and Burial details Town of death Bertrancourt