| Intro | South african military personnel |
| A.K.A. | J.W. Viljoen, Johannes Willem Viljoen |
| Was | Military personnel |
| From | South Africa |
| Type | Military |
| Gender | male |
| Birth | 14 May 1812, Uitenhage, Nelson Mandela Bay Metropolitan Municipality, Eastern Cape, South Africa |
| Death |
20 April 1893, Zeerust, Ramotshere Moiloa Local Municipality, Ngaka Modiri Molema District Municipality, North West (aged 80 years) |
| Star sign | Taurus |