| Regimental number | 21358 |
| Place of birth | Wagga Wagga New South Wales |
| Religion | Church of England |
| Occupation | Clerk |
| Address | Surrey Hills, Victoria |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, T L Singleton, Middlesex Road, Surrey Hills, Victoria |
| Enlistment date | 14 July 1917 |
| Date of enlistment from Nominal Roll | 30 July 1917 |
| Rank on enlistment | Sapper |
| Unit name | 1 Signal Squadron Engineers, December 1917 Reinforcement |
| AWM Embarkation Roll number | 22/37/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board SS Port Lyttleton on 24 June 1918 |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | 1st Signal Troop Engineers |
| Fate | Returned to Australia 15 May 1919 |
| Miscellaneous details (Nominal Roll) | *Given name Gerald Theodore |