| Place of birth | Reading, Berkshire, England |
| Religion | Protestant |
| Occupation | Soldier |
| Address | 205 Melville Street, Hobart, Tasmania |
| Marital status | Married |
| Age at embarkation | 32 |
| Height | 5' 7" |
| Weight | 145 lbs |
| Next of kin | Mrs E Lacy, 205 Melville Street, Hobart, Tasmania |
| Previous military service | Served for 13 years in the British Army; 1.6 years in the Australian Army Medical Corps (Permanent Force). |
| Enlistment date | |
| Place of enlistment | Broadmeadows, Victoria |
| Rank on enlistment | Warrant Officer |
| Unit name | 1st Light Horse Field Ambulance, A Squadron |
| AWM Embarkation Roll number | 26/39/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board Transport A27 Southern on |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 15th Field Ambulance |
| Recommendations (Medals and Awards) |
Mention in Despatches Period 22 September 1917 - 25 February 1918 Not awarded. Mention in Despatches Not awarded. Recommendation date: |
| Fate | Returned to Australia |
| Other details |
War service: Egypt, Western Front Commenced return to Australia on board HT 'Nestor', 1 November 1919; arrived Melbourne, 15 December 1919, to await onward transport to Hobart; appointment terminated (discharged), 19 February 1920. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Sources | NAA: B2455, LACY Ernest William |