| Intro | Amerikaans kunstschilder (1896-1979) |
| A.K.A. | Schiefer, Johannes Shiefer |
| Was |
Painter Software engineer Computer scientist System administrator |
| From |
United States of America Netherlands |
| Type |
Arts Technology Science |
| Gender | male |
| Birth | 1896 |
| Death |
1979 (aged 83 years) |