| Regimental number | 3939 |
| Place of birth | Sundsvall, Sweden |
| Religion | Methodist |
| Occupation | Labourer |
| Address | Port Pirie, South Australia |
| Marital status | Single |
| Age at embarkation | 21.2 |
| Height | 5' 9" |
| Weight | 147 lbs |
| Next of kin | Mother, Mrs H Hergstrom, Woodside, South Australia |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Port Pirie, South Australia |
| Rank on enlistment | Private |
| Unit name | 5th Pioneer Battalion, Reinforcement 10 |
| AWM Embarkation Roll number | 14/17/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A60 Aeneas on |
| Regimental number from Nominal Roll | 3939A |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 48th Battalion |
| Fate | Killed in Action |
| Age at death from cemetery records | 20 |
| Place of burial | Villers-Bretonneux Military Cemetery (Plot VIII, Row A, Grave No. 4), Fouilloy, France |
| Panel number, Roll of Honour, Australian War Memorial | 146 |
| Miscellaneous information from cemetery records | Parents: Ernest and Hulda HERGSTROM, Woodside, South Australia |
| Other details |
War service: Western Front Embarked Melbourne, 30 October 1917; disembarked Devonport, England, 27 December 1917, and marched into Pioneer Training Bn, Sutton Veny. Marched into 32nd Bn Details, Codford, 2 January 1918. Proceeded overseas to France, 1 April 1918; taken on strength, 48th Bn, in the field, 16 April 1918. Killed in action, 3 July 1918. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, HERGSTROM Carl Tura |