| Regimental number | 1210 |
| Place of birth | Utrecht, Holland, The Netherlands |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Ipswich Road, Brisbane, Queensland |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Brother, John Otterspoor, Ipswich Road, Brisbane, Queensland |
| Enlistment date | 19 August 1915 |
| Date of enlistment from Nominal Roll | 18 August 1915 |
| Rank on enlistment | Private |
| Unit name | 11th Light Horse Regiment, 6th Reinforcement |
| AWM Embarkation Roll number | 10/16/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A47 Mashobra on 4 October 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 11th Light Horse Regiment |
| Other details from Roll of Honour Circular | Family migrated to Australia. |
| Fate | Effective abroad (still overseas) |
| Family/military connections | Brothers: 464 Francis Jacob OTTERSPOOR, 32st Bn, killed in action, Pozieres, France, 19 July 1916; 3900 Pte John OTTERSPOOR, 4th Pioneer Bn, killed in action, Villers-Bretonneux, France, 22 May 1918. |