Basic Details Surname Rennie Forenames William 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) 7th Black Watch Rank / Title (Primary - Stated) C.S.M. Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) The Black Watch (Royal Highlanders) Rank / Title (Primary - Our reference) Colour Sergeant (Colour Sergeant Major)