| Regimental number | 3248 |
| Place of birth | Broken Hill, New South Wales |
| Other Names | WAHLSTED |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Railway Town, Broken Hill, New South Wales |
| Marital status | Single |
| Age at embarkation | 24 |
| Height | 5' 7" |
| Weight | 134 lbs |
| Next of kin | Sister, Mrs Florence Lawrence, Railway Town, Broken Hill, New South Wales |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Adelaide, South Australia |
| Rank on enlistment | Private |
| Unit name | 50th Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 23/67/3 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A35 Berrima on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 50th Battalion |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *spelt Sidney Charles Wahlstedt on NR |
| Miscellaneous information from cemetery records | Parents: Charles and Mary Theresa WAHLSTED |
| Discharge date | |
| Other details |
War service: Western Front Commenced return to Australia on board hT 'Ulysses', 18 January 1919; disembarked Adelaide, 1 March 1919; discharged (medically unfit), Adelaide, 28 June 1919. Medals: British War Medal, Victory Medal |
| Date of death | |
| Age at death | 35 |
| Place of burial | AIF Cemetery, West Terrace, Adelaide, South Australia |
| Sources | NAA: B2455, WAHLSTEDT Sydney Charles |