| Regimental number | 34824 |
| Place of birth | Wallar New South Wales |
| Religion | Church of England |
| Occupation | Bank clerk |
| Address | Commercial Banking Co, Head Office, Sydney, New South Wales |
| Marital status | Married |
| Age at embarkation | 26 |
| Next of kin | Wife, Mrs Carrie D Single, Twickenham, Bowral, New South Wales |
| Enlistment date | 7 December 1916 |
| Rank on enlistment | Gunner |
| Unit name | Field Artillery Brigade, April 1917 Reinforcements |
| AWM Embarkation Roll number | 13/128/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A29 Suevic on 21 June 1917 |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 5th Field Artillery Brigade |
| Other details from Roll of Honour Circular | According to Brother's RoHC, first name began with letter 'C', was rank Lieutenant Colonel and received D.S.O. |
| Fate | Returned to Australia 1 July 1919 |
| Family/military connections | Brothers: Raymond Vallack Single, 56th Battalion, who was killed in action at Polygon Wood, Ypres, Belgium on 26 September 1917 and No.19359 Corporal Roy Vallack Single M.M., 13th Artillery Brigade. Also Cousins: Captain R. Thompson, killed in action at Polygon Wood on 26/27 September 1917, Sergeant J. Digby who was killed in action at Gallipoli and Private M. Digby who was killed in action in France. Also Uncle: Sergeant Fraser, killed in action in France. |
