| Regimental number | 2031 |
| Place of birth | Sydney New South Wales |
| Religion | Church of England |
| Occupation | Labourer |
| Address | Mitchells Island, Manning River, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Mother, Mrs A Alsen, Mitchells Island, Manning River, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 20th Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/37/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A54 Runic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 18th Battalion |
| Fate | Returned to Australia |
| Other details | Name given on cemetery records as William A. OLSEN. |
| Date of death | |
| Age at death | 35 |
| Place of burial | Wauchope Cemetery, New South Wales |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
