
| Regimental number | 6414 |
| Place of birth | Burnside, Doagh Co, Antrim, Ireland |
| Place of birth | Ballyclare, Ireland |
| Other Names | ARMSTRONG, D |
| School | Cogry National School, Doagh, Ireland |
| Age on arrival in Australia | 21 |
| Religion | Presbyterian |
| Occupation | Station hand |
| Address | Merribee, Barallan, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Height | 5' 8" |
| Weight | 154 lbs |
| Next of kin | Mother, Mrs A Black, Burnside, Doagh, Co Antrim, Ireland |
| Previous military service | Nil |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Cootamundra, New South Wales |
| Rank on enlistment | Private |
| Unit name | 3rd Battalion, 20th Reinforcement |
| AWM Embarkation Roll number | 23/20/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A14 Euripides on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Menin Road, Ypres, Belgium |
| Date of death | |
| Age at death | 27 |
| Place of burial | Railway Dugouts Burial Ground (Transport Farm) (Plot IV, Row N, Grave No. 5), Zillebeke, Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 35 |
| Other details |
War service: Western Front Embarked Sydney, 9 September 1916; disembarked Plymouth, England, 26 October 1916 Marched into 1st Training Bn, 8 December 1916. Proceeded overseas to France, 28 February 1917; marched into Etaples, 1 March 1917; taken on strength, 3rd Bn, in the field, 22 March 1917. Killed in action, Belgium, 20 September 1917. Medals: British War Medal, Victory Medal |