| Regimental number | 8/1625 |
| Date of birth | |
| Place of birth | Gisborne |
| Religion | Presbyterian |
| Occupation | Student |
| Address | Knox College, Dunedin |
| Marital status | Single |
| Age at embarkation | 21 |
| Height | 5' 9" |
| Weight | 144 lbs |
| Next of kin | Father, R M Ryburn, Tay Street, Invercargill |
| Previous military service | Served in 4th (Otago Rifles) Regiment, Territorial Force; still serving at time of NZEF enlistment. |
| Enlistment date | |
| Place of enlistment | Trentham |
| Rank on embarkation | Sergeant |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 3rd Reinforcements, Otago Infantry Battalion, D Company |
| Embarkation details | Unit embarked from Wellington on |
| The Otago Infantry Battalion, 3rd Reinforcements, left New Zealand on board three ships (HMNZT 17 'Maunganui', HMNZT 18 'Tahiti' and HMNZT 19 'Aparima'). It is not possible from the Nominal Roll to determine on which ship an individual embarked. | |
| Final rank | 2nd Lieutenant |
| Final unit | 2nd Battalion, Otago Infantry Regiment |
| Fate | Killed in Action |
| Age at death from cemetery records | 21 |
| Place of burial | No known grave |
| Commemoration details | Tyne Cot Memorial (,New Zealand Apse, Panel No 3), Tyne Cot Cemetery, Zonnebeke, West-Vlaanderen, Belgium |
| Miscellaneous information from cemetery records | Parents: the Rev. Robert Middleton Ryburn and Anna Jane, his wife, 88 Flocton Street, Christchurch |
| Other details |
War service: Egypt, Gallipoli, Western Front Embarked Alexandria to join the Mediterranean Expeditionary Force, Gallipoli, 12 April 1915. Promoted Corporal, 7 May 1915. Admited to Lowlands Casualty Clearing Station, Mudros, 21 July 1915 (gastritis); discharged to Camp Commandant, Imbros, 28 July 1915. Admitted sick to hospital, Lemnos, 15 October 1915; transferred to 3rd Australian General Hospital, Lemnos, 15 October 1915 (jaundice); transferred to Lowland Casualty Clearing Station, Mudros, 2 December 1915; to Anzac Base, Mudros, 21 December 1915. Disembarked Alexandria, 10 January 1916; rejoined unit, Moascar, 12 January 1916. Granted temporary rank of Sergeant, 1 February 1916. Promoted Sergeant, Ferry Post, 4 March 1916. Embarked to join the British Expeditionary Force, France, 6 April 1916. Wounded in action, 14 July 1916 (multiple gunshot wounds), and admitted to No 2 NZ Field Ambulance, and transferred to No 2 Casualty Clearing Station; to 35th General Hospital, Calais, 14 July 1916; to England, 16 July 1916, and admitted to No 2 London General Hospital, Chelsea, 16 July 1916; to No 1 NZ General Hospital, Brockenhurst, 7 August 1916; to NZ Convalescent Camp, Hornchurch, 12 September 1916. Reprimanded, 19 September 1916, for being absent with out leave, midnight, 17/18 September, to 11 am, 18 September 1916. Taken on strength, NZ Command Depot, Codford, 21 September 1916. Marched out to Officer Training Company, Sling Camp, 23 April 1917. Appointed 2nd Lt, NZEF, 2 June 1917. Proceeded overseas to France, 28 June 1917; joined 2nd Bn, Otago Infantry Regiment, in the field, 7 July 1917. Detached to School of Instruction, 19 July 1917; rejoined Bn, 28 July 1917. Detached to School of Instruction, 14 August 1917; rejoined Bn, 14 September 1917. Killed in action, 12 October 1917. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Nominal Roll Vol. 1: Otago Infantry Batln/Third |
| Sources | Archives New Zealand (Wellington), Agency AABK, Series 18805, File 7880787 |