| Regimental number | 45548 |
| Date of birth | |
| Place of birth | Cambridge |
| Religion | Church of England |
| Occupation | Clerk |
| Marital status | Single |
| Age at embarkation | 25 |
| Height | 5' 6.25" |
| Weight | 117 lbs |
| Next of kin | Father, F D O'Toole, Cambridge |
| Previous military service | Served in the 16th (Waikato) Regiment, Territorial Force; still serving at time of NZEF enlistment; previously rejected for enlistment on account of insufficient chest measurement. |
| Enlistment date | |
| Rank on embarkation | Private |
| Unit name | New Zealand Expeditionary Force, 25th Reinforcements, E Company |
| Embarkation details | Unit embarked from Wellington on board HMNZT Tofua on |
| Final rank | Private |
| Final unit | 2nd Battalion, Auckland Infantry Regiment |
| Fate | Commenced return to New Zealand |
| Discharge date | |
| Family/military connections | Brother: 23424 Lance Corporal Arthur Desmond O'TOOLE, 2nd Bn, Auckland Infantry Regiment, returned to New Zealand, 15 January 1920. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Sources | Nominal Roll Vol. 3: Roll 62, p. 18 Archives New Zealand (Wellington), Agency AABK, Series 18805, File 21383032 |