| Regimental number | 2192 |
| Place of birth | Kerang Victoria |
| Religion | Baptist |
| Occupation | Water Bailiff |
| Address | Macorna, Victoria |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Mother, Eleanor Long, Macorna, Victoria |
| Enlistment date | 11 April 1916 |
| Rank on enlistment | Private |
| Unit name | 60th Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/77/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A67 Orsova on 1 August 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 60th Battalion |
| Fate | Effective abroad (still overseas) |
| Miscellaneous details (Nominal Roll) | *Spelt Reuben Ivan Long on NR |
| Family/military connections | Father: 97 Pte Benjamin Marsham LONG, 1st Australian Remount Unit, returned to Australia, 18 October 1916. Brothers: 437 Pte Horace Samuel LONG, 9th Light Horse Regiment, returned to Australia, 16 March 1919; 439 Pte Benjamin Marshman LONG, 4th Light Horse Regiment, returned to Australia, 12 November 1917. |
