| Regimental number | 268 |
| Religion | Church of England |
| Occupation | Writer |
| Address | 25 Roslin Gardens, Elizabeth Bay, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, Sir Bernard Portman, Wadestown, Wellington, New Zealand |
| Enlistment date | 11 August 1914 |
| Date of enlistment from Nominal Roll | 22 March 1915 |
| Rank on enlistment | Private |
| Unit name | Australian Naval & Military Expeditionary Force (Tropical Unit), B Company |
| AWM Embarkation Roll number | 23/112/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A35 Berrima on 19 August 1914 |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 20th Battalion |
| Fate | Returned to Australia 19 June 1919 |