| Personal Details |
| Name: | Master Willem Johannes Jacobus Koster |
| Other Names: | Willem Johannes |
| Born in camp? |
No |
| Place of death: | Barberton RC |
| Age died: | 2 years |
| Died in camp? |
Yes |
| Gender: | male |
| Race: | white |
| Marital status: | single |
| Nationality: | Transvaal |
| Registration as child: | Yes |
| Unique ID: | 111436 |
| Camp History |
| Name: | Barberton RC |
| Age arrival: | 2 |
| Date arrival: | 15/07/1901 |
| Date departure: | 07/09/1901 |
| Reason departure: | Death |
| Tent number: | 515 |
| Farm History |
| Name: | Aankomst |
| District: | Swaziland |
|
| Name: | M'qua Kini |
| District: | Swaziland |
| Relationships |
| Master Willem Johannes Jacobus Koster (Willem Johannes) |
| is the son of Mrs Maria Rachel Koster |
| Sources |
| Title: | RS 26 Transvaal DL |
| Type: | Death lists |
| Location: | National Archives, Pretoria |
| Reference No.: | 26 |
| Origin: | Goldman |
| Notes: | p.192 |
| Title: | DBC 54 Barberton CR |
| Type: | Camp register |
| Location: | National Archives, Pretoria |
| Reference No.: | DBC 54 |
| Notes: | p.183 |
British Concentration Camps