Basic Details Surname Sims Forenames J Y Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Service (Primary - Stated) Army Unit (Primary - Stated) R.N.A.S. Rank / Title (Primary - Stated) Flight Sub Lieut Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) Royal Naval Air Service Rank / Title (Primary - Our reference) Flight Sub Lieutenant