Basic Details Surname Meryon Forenames Thomas Chalmers Gender Male Information stated on memorial War Military Service Served or died Died Notes He is also listed on IWM 101320 Primary Service As stated on memorial Service (Primary - Stated) Navy Unit (Primary - Stated) Submarine C 21 Rank / Title (Primary - Stated) Lieutenant Commander Our References Service (Primary - Our reference) Royal Navy Rank / Title (Primary - Our reference) Lieutenant Commander Death and Burial details Year of death 1913 Month of death January Day of death 28 Age at death 26 Manner of death as stated Washed off and drowned Manner of death reference Other