Basic Details Surname Mumby Forenames J Gender Male Information stated on memorial Alternative forename James War First World War (1914-1918) Served or died Died Notes Sank after hitting a mine Primary Service As stated on memorial Service (Primary - Stated) Merchant Marine Unit (Primary - Stated) Steam Trawler "Theiban" (Grimsby) ["Theban" on CWGC] Rank / Title (Primary - Stated) Second Engineer Our References Service (Primary - Our reference) Merchant Navy Unit (Primary - Our reference) Steam Trawler "Theiban" (Grimsby) ["Theban" on CWGC] Rank / Title (Primary - Our reference) Second Engineer Death and Burial details Country of death At Sea Year of death 1919 Month of death November Day of death 14 Age at death 47 Manner of death reference Other Personal Details Birthplace Grimsby