| Regimental number | 2038 |
| Place of birth | Narrabri New South Wales |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Bull Creek, Bullawa, Narrabri, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, Joseph Illingworth, Bull Creek Bullawa, Narrabri, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 1st Light Horse Regiment, 14th Reinforcement |
| AWM Embarkation Roll number | 10/6/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT RMS Osterley on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 5th Field Artillery Brigade |
| Fate | Died of wounds |
| Miscellaneous details (Nominal Roll) | *Spelt George Lenard Illingworth on NR |
| Age at death from cemetery records | 28 |
| Place of burial | Lijssenthoek Military Cemetery (Plot XXI, Row E, Grave No. 13A), Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 14 |
| Miscellaneous information from cemetery records | Parents: Joe and Alice Mary ILLINGWORTH, Bullawa Creek, Narrabri, New South Wales. Native of Narrabri |