| Regimental number | 429 |
| Date of birth | 24 March 1897 |
| Place of birth | Newtown, New South Wales |
| Other Names | Edward St Clair |
| School | St Peter's, Sydney |
| Religion | Church of England |
| Occupation | Engineer |
| Address | Marrickville, New South Wales |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, John Forbes, 'Alexandra', Unwins Bridge Road, Marrickville, New South Wales |
| Enlistment date | 17 January 1916 |
| Date of enlistment from Nominal Roll | 14 January 1916 |
| Rank on enlistment | Private |
| Unit name | 34th Battalion, B Company |
| AWM Embarkation Roll number | 23/51/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A20 Hororata on 2 May 1916 |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 34th Battalion |
| Fate | Returned to Australia 15 January 1919 |
| Discharge date | 24 April 1919 |
| Family/military connections | Brothers: 1307 Captain Samuel FORBES, 4th Battalion, 2nd Reinforcement, Discharged 13 February 1919; 5948 Private Stewart McKay FORBES, 18th Battalion, 16th Reinforcement, returned to Australia 24 April 1918. |
| Other details | War Service: France and Belgium |
| Date of death | 18 October 1952 |
| Place of burial | Northern Suburbs Crematorium, Sydney, New South Wales. |