Basic Details Surname Sinclair Forenames Lionel F. Gender Male Information stated on memorial War First World War (1914-1918) Served or died Served Notes NB incorrect spelling of Sergeant on RoH Primary Service As stated on memorial Unit (Primary - Stated) Royal Engineers Rank / Title (Primary - Stated) Serjeant Major Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) Royal Engineers Rank / Title (Primary - Our reference) Sergeant Major