| Regimental number | 421 |
| Place of birth | Tipperary, Ireland |
| Religion | Roman Catholic |
| Occupation | Miner |
| Address | Post Office, Boulder City, Western Australia |
| Marital status | Single |
| Age at embarkation | 37 |
| Height | 5' 7.5" |
| Weight | 154 lbs |
| Next of kin | sister, Mrs Johanna O'Brien, Kellerberrin, Western Australia |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Blackboy Hill, Western Australia |
| Rank on enlistment | Private |
| Unit name | Mining Corps 1, Company 1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A38 Ulysses on |
| Regimental number from Nominal Roll | 411 |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | 1st Tunnelling Company |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Western Front. Embarked from Australia, 20 February 1916; disembarked Marseilles, France, 5 May 1916, and detrained to Hazebrouck, 8 May 1916. Admitted to 13th Australian Field Ambulance, sick with ulcerated tonsils, 11 August 1917. Discharged to duty and rejoined unit, 21 August 1917. Found guilty , 12 November 1917, of when on active serviced, drunkenness on 4 November 1917: awarded forfeiture of 7 days' pay. On leave from France, 7- 21 December 1917. Rejoined unit in France from leave, 25 December 1917. Marched out for return to Australia, from the field, 12 February 1919. Marched out to England, 24 February 1917, from France. To Group Hospital, Parkhouse, sick, 28 February 1919. Marched in from hospital, 1 March 1919. Marched out to Heysbury, Parkhouse, 26 March 1919. Commenced return to Australia on board 'Soudan', departing from Devonport, England, 12 May 1919; discharged, 5 August 1919. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, COAK Michael |