Cornelis Koster (1829-1900) |
Margaretha Johanna van Blokland (1833-1907) 
|
Johannus Theodorus Koster (1854-1921)  |
| Nicolaas Bartholomeus Koster (1856- ) |
| Cornelis Koster (1858-1862) |
| Cornelis Koster (1864-1927) |
| Bartholomeus Koster (1867-1918) |
| Christiaan Koster (1870-1947) |
| Albertus Adrianus van Dijk (1860- ) |
| Anna Margaretha Koster (1861-1945)
|
