Basic Details Surname Slim Forenames William Gender Male Information stated on memorial Alternative surname Viscount War Second World War (1939-1945) Served or died Served Honours K.G., GCB., G.C.M.G, G.C.V.O, G.B.E., D.S.O., M.C. Primary Service As stated on memorial Service (Primary - Stated) Army (British) Rank / Title (Primary - Stated) Field Marshal Our References Service (Primary - Our reference) British Army Rank / Title (Primary - Our reference) Field Marshal