| Regimental number | 7/2116 |
| Date of birth | |
| Place of birth | Christchurch |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Marital status | Single |
| Age at embarkation | 20.4 |
| Height | 5' 11" |
| Weight | 154 lbs |
| Next of kin | Mother, Mrs J T O'Shaughnessy, Halswell, Canterbury |
| Previous military service | Served in B Squadron, Canterbury Yeomanry Cavalry, Territorial Force; still serving at time of NZEF enlistment. |
| Enlistment date | |
| Place of enlistment | Trentham |
| Rank on embarkation | Trooper |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 9th Reinforcements, Canterbury Mounted Rifles, C Squadron |
| Embarkation details | Unit embarked from Wellington on board SS Maunganui on |
| Final rank | Corporal |
| Final unit | 2nd Battalion, Canterbury Infantry Regiment |
| Fate | Killed in Action |
| Age at death from cemetery records | 21 |
| Place of burial | Caterpillar Valley Cemetery (Plot XXIV, Row K, Grave No 8), Longueval, France |
| Miscellaneous information from cemetery records | Parents: William and Jane Theresa O'Shaughnessy, Ellesmere, Canterbury |
| Other details |
War service: Egypt, Western Front Embarked Wellington, 8 January 1916; disembarked Suez, 12 February 1916. Admitted to No 4 Auxiliary Hospital, Heliopolis, 28 February 1916 (measles). Joined 2nd Bn, Canterbury Infantry Regiment, Moascar, 26 March 1916. Embarked Alexandria to join the British Expeditionary Force, France, 7 April 1916. Wounded in action, 7 July 1916 (conjunctivitis caused by gas shell), and admitted to No 2 NZ Field Ambulance; transferred to 15th Casualty Clearing Station, 11 July 1916; rejoined Bn, in the field, 28 July 1916. Promoted Corporal, 25 September 1916. Reported missing, 1 October 1916. Reported, 19 October 1916, killed in action, 1 October 1916. War service: 347 days (of which 267 days days were abroad) Medals: British War Medal, Victory Medal |
| Sources | Nominal Roll Vol. 2: Roll 21, p. 9 Archives New Zealand (Wellington), Agency AABK, Series 18805, File 21382895 |