| Name | Gilbert Frederick TRIMMER |
| Rank/Number | Company Sergeant Major / T/3359 |
| Regiment/Unit | West Surrey Regiment / 2/4th Battalion |
| Enlisted | Guildford, Surrey |
| Age/Date of death | 39 / 09 Aug 1915 |
| How died/Theatre of war | Killed in action / Gallipoli |
| Residence at death | Newport Pagnell |
| Cemetery | Helles Memorial, Turkey |
| Grave Reference | Panel 30 & 31 |
| Location of memorial | Newport Pagnell |
| Date/Place of birth | c1876 / Guildford, Surrey |
| Date/Place of baptism | |
| Occupation of Casualty | master tailor |
| Parents/Occupation | John & Alice Keturah Trimmer / assist overseer & rate collector |
| Parents' Address | 1911: 4 Woodbridge Rd, Guildford, Surrey |
| Wife | Grace Eleanor Trimmer |
| Wife's Address | Esher Cottage, Tickford St, Newport Pagnell |