| John Koster (1876 - 1951) |
|
| Lucy Dyke (1883 - 1933) |
| Bernard Koster48 | Lucille Zylstra48 |
| b. Jul 14, 1919, Sheldon, IA d. Jul 28, 1974, Sheldon, IA bur. occ. bp. |
b. d. bur. occ. bp. |
| Roger Koster John Koster Donald Koster Richard Koster Judy Koster Connie Koster |