| Regimental number | 3068 |
| Place of birth | Corfu |
| School | Charterhouse School, England |
| Other training | Trinity Hall, Cambridge |
| Religion | Church of England |
| Occupation | Fruit farmer |
| Address | GPO Brisbane, Queensland |
| Marital status | Single |
| Age at embarkation | 37 |
| Next of kin | Brother, Thomas Jennings, Brookfield, Cork, Ireland |
| Previous military service | Returned from Inniskilling Fusiliers, with rank of Captain |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 26th Battalion, 7th Reinforcement |
| AWM Embarkation Roll number | 23/43/2 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A50 Itonus on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 48th Battalion |
| Other details from Roll of Honour Circular | Given name on RoHc George Montgomery |
| Fate | Died of wounds |
| Miscellaneous details (Nominal Roll) | *Spelt George Montgomery Jennings on NR |
| Place of death or wounding | Michvillars, France |
| Age at death from cemetery records | 38 |
| Place of burial | Puchevillers British Cemetery (Plot I, Row E, Grave No. 70), France |
| Panel number, Roll of Honour, Australian War Memorial | 146 |
| Miscellaneous information from cemetery records | Parents: Francis Montgomery and Margaret JENNINGS. Native of Cork, Ireland |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |