| Regimental number | 3676 |
| Place of birth | Norwood, South Australia |
| School | Public School |
| Other training | Business College |
| Religion | Congregational |
| Occupation | Clerk |
| Address | 8 Cairns Street, Norwood, South Australia |
| Marital status | Single |
| Age at embarkation | 22 |
| Height | 5' 8.5" |
| Weight | 143 lbs |
| Next of kin | Mother, Mrs Koster, 8 Cairns Street, Norwood, South Australia |
| Previous military service | Nil |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Keswick, South Australia |
| Rank on enlistment | Private |
| Unit name | Infantry Brigade 7, Field Ambulance 7, Section B |
| AWM Embarkation Roll number | 26/50/1 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A2 Geelong on |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT Clan Mcewan on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 7th Field Ambulance |
| Fate | Died of disease |
| Place of death or wounding | St Omer, France |
| Age at death | 23 |
| Age at death from cemetery records | 23 |
| Place of burial | Longuenesse (St. Omer) Souvenir Cemetery (Plot III, Row B, Grave No. 6), France |
| Panel number, Roll of Honour, Australian War Memorial | 183 |
| Miscellaneous information from cemetery records | Parents: Charles Frank and Sarah Jane KOSTER, 9 Parade, Norwood, South Australia. Photo: Brian McLauchlan |
| Family/military connections | Cousin: Captain Howell, Aviator. Cousin: Lieutenant Winsor Burdett, MC |
| Other details |
War service: Egypt, Gallipoli, Western Front Died of cerebro spinal fever. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Sources | NAA: B2455, KOSTER Frank Roy |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
