| Regimental number | 3696 |
| Place of birth | Fredericia Denmark |
| Religion | Roman Catholic |
| Occupation | Miner |
| Address | South Brisbane, Queensland |
| Marital status | Single |
| Age at embarkation | 43 |
| Next of kin | Brother, Peter Joseph Nielsen, Frederica, Denmark |
| Enlistment date | 9 July 1917 |
| Rank on enlistment | Private |
| Unit name | 49th Battalion, 10th Reinforcement |
| AWM Embarkation Roll number | 23/66/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A7 Medic on 1 August 1917 |
| Regimental number from Nominal Roll | 3696B |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 25th Battalion |
| Fate | Returned to Australia 7 June 1918 |