| Regimental number | 371 |
| Place of birth | Don, Tasmania |
| School | Somerset State School, Tasmania |
| Other training | Engine driving |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Elliott, Tasmania |
| Marital status | Single |
| Age at embarkation | 30 |
| Next of kin | Father, Robert Fleming, Elliott via Burnie, Tasmania |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 40th Battalion, B Company |
| AWM Embarkation Roll number | 23/57/1 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board HMAT A35 Berrima on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 51st Battalion |
| Other details from Roll of Honour Circular | Full Name: John William Whistler FLEMING |
| Fate | Killed in Action |
| Place of death or wounding | Passchendaele, Ypres, Belgium |
| Age at death | 33 |
| Age at death from cemetery records | 31 |
| Place of burial | H.A.C. Cemetery, (Special Memorial B. I), Ecoust-St. Mein, France |
| Panel number, Roll of Honour, Australian War Memorial | 152 |
| Miscellaneous information from cemetery records | Parents: Robert and Mary Ann FLEMMING, Elliott, Tasmania. Surname on Cemetery Details is spelt : FLEMMING |
| Family/military connections | Brother:194 Private Alfred Claude Matthew FLEMING, 40th Battalion, A Company,died of wounds 17 November 1917; First Cousins: 380 Private Francis Leopold GALE, 40th Battalion, B Company, Died of wounds (gas) 30 August 1918, France; 381 Private Lynden Thomas GALE, 40th Battalion, B Company, returned to Australia 18 October 1917, 382 Private Wilfred George GALE, 40th Battalion, B Company, returned to Australia 27 May 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |