| Regimental number | 25 |
| Place of birth | Southport, Queensland |
| School | Richmond Hill State School, Charters Towers, Queensland |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Southport, Queensland |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Brother, G R Caless, Ayr PO, Ayr, Queensland |
| Previous military service | Served in the Senior Cadets as 2Lt. |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 26th Battalion, A Company |
| AWM Embarkation Roll number | 23/43/1 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A11 Ascanius on |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 26th Battalion |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | *Stated to be Francis Burleigh Caless on NR |
| Place of death or wounding | Pozieres, Somme Sector, France |
| Age at death | 22 |
| Age at death from cemetery records | 22 |
| Place of burial | Serre Road Cemetery No. 2 (Plot XXV, Row F, grave No. 11), France |
| Panel number, Roll of Honour, Australian War Memorial | 107 |
| Miscellaneous information from cemetery records | Parents: William and Delia CALESS, Ayr, Queensland. Born at Southport, Queensland |
| Family/military connections | Brother |