| Regimental number | 8/2957 |
| Place of birth | Flag Swamp |
| Address | Otiake, Otago |
| Marital status | Single |
| Next of kin | Father, R Jefferis, Otiake, Otago |
| Rank on embarkation | Private |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 7th Reinforcements, Otago Infantry Battalion |
| Embarkation details | Unit embarked from Wellington on |
| The 7th Reinforcements left New Zealand on 10 October 1915 aboard three ships ('Aparima', 'Navua' and 'Warrimoo'). It is not possible from the Nominal Roll to determine on which ship an individual embarked. | |
| Final rank | Private |
| Final unit | Otago Infantry Regiment |
| Fate | Died of disease |
| Age at death from cemetery records | 26 |
| Place of burial | At sea |
| Commemoration details | Otago Provicial Memorial |
| Miscellaneous information from cemetery records | Parents: Rowland and Mary Jefferis, Torridge Street, Oamaru, North Otago |
| Family/military connections | Brothers: 50853 Norman Hall JEFFERIS; 8/2956 Corporal Ralph Stanley Culling JEFFERIS, 2nd Bn, Wellington Infantry Regiment, attached to New Zealand Light Trench Mortar Battery, killed in action, 4 October 1917. |
| Other details |
Died at sea en route from New Zealand. Medal: British War Medal |
| Miscellaneous details | Nominal Roll Vol. 1: Otago Infantry Batln/Seventh |