| Regimental number | 3996 |
| Place of birth | Bourke New South Wales |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Canowindra, New South Wales |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, P J Biddulph, Cremona, Everton Road, Strathfield, New South Wales |
| Enlistment date | |
| Rank on enlistment | Acting Sergeant |
| Unit name | 18th Battalion, 9th Reinforcement |
| AWM Embarkation Roll number | 23/35/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A54 Runic on |
| Rank from Nominal Roll | 2nd Lieutenant |
| Unit from Nominal Roll | 34th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: Captain Lindon Helton BIDDULPH MC, 35th Bn, returned to Australia, 19 April 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |