Individual Details
Living
( - )
Families
| Father | Cornelius James KOSTER (1864 - 1900) |
| Mother | Cora Helen SCHIPPERS (1864 - 1927) |
| Sibling | Living |
| Sibling | Living |
| Sibling | John Garrett KOSTER (1896 - 1973) |
( - )
| Father | Cornelius James KOSTER (1864 - 1900) |
| Mother | Cora Helen SCHIPPERS (1864 - 1927) |
| Sibling | Living |
| Sibling | Living |
| Sibling | John Garrett KOSTER (1896 - 1973) |