| Religion | Presbyterian |
| Occupation | Farmer |
| Address | c/o L Riley, Elsternwick, Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 35 |
| Next of kin | Brother, Robert Conn, chemist, Dunedin, New Zealand |
| Enlistment date | 25 March 1915 |
| Rank on enlistment | Lieutenant |
| Unit name | 27th Battalion, D Company |
| AWM Embarkation Roll number | 23/44/1 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A2 Geelong on 31 May 1915 |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 27th Battalion |
| Fate | Returned to Australia 14 October 1916 |