Basic Details Surname O'Sullivan Forenames Gerald Robert Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Honours VC Primary Service As stated on memorial Service (Primary - Stated) Not stated on memorial Unit (Primary - Stated) 27 Inniskillens Rank / Title (Primary - Stated) Capt Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) The Royal Inniskilling Fusiliers Rank / Title (Primary - Our reference) Captain Death and Burial details Country of death Gallipoli Town of death Suvla Bay Country of burial Gallipoli Town of burial Not stated on memorial Year of death 1915 Month of death August Day of death 21 Manner of death as stated Killed in action Manner of death reference Killed in Action