1898-1928
| Adriana Elisabeth Koster | |
| G: | 1898 |
| Rotterdam | |
| O: | 1928 |
| Rotterdam | |
1899-
| Kattelientje Koster | |
| G: | 1899 |
| Rotterdam | |
| Cornelis Hendrik de Water | |
| G: | 1898 |
| Rotterdam | |
| H: | 1918 |
| Rotterdam | |
1901-
| Maartje Koster | |
| G: | 1901 |
| Rotterdam | |
1898-
| Pieter den Broer | |
| G: | 1898 |
| Rotterdam | |
| H: | 1920 |
| Rotterdam | |
1905-1990
| Maarten Koster | |
| G: | 1905 |
| Rotterdam | |
| O: | 1990 |
| Orange, California, USA | |
1905-
| Lijntje van Dijk | |
| G: | 1905 |
| Rotterdam | |
| H: | 1928 |
| Rotterdam | |
1908-
| Arie Koster | |
| G: | 1908 |
| Rotterdam | |
1874-1939
| Aart Koster | |
| G: | 1874 |
| IJsselmonde | |
| O: | 1939 |
| Rotterdam | |
1879-1939
| Adriaantje Johanna Tiggelman | |
| G: | 1879 |
| Haarlemmerliede | |
| H: | 1898 |
| Rotterdam | |
| O: | 1939 |
| Rotterdam | |
| Adriana Elisabeth Veldhoen | |
| G: | 1840 |
| IJsselmonde | |
1838-1896
| Maarten Koster | |
| G: | 1838 |
| Charlois | |
| H: | 1861 |
| IJsselmonde | |
| O: | 1896 |
| IJsselmonde | |