
| Johanna Carolina Theresia Koster | |
| G: | 20 feb 1928 | 
| Laren NH | |
| O: | 29 mei 2005 | 
| Johannes Gijsbertus Petrus Koster | |
| G: | 21 feb 1929 | 
| Laren NH | |
| O: | 1 jun 2015 | 
| Laren NH | |
| Gerardus Johannes Maria Koster | |
| G: | 27 apr 1933 | 
| Laren NH | |
| O: | 30 jul 1981 | 
| Franciscus Thomas Maria Koster | |
| G: | 25 mei 1938 | 
| Laren NH | |
| O: | 29 okt 1958 | 
| Ermelo | |
  | 
| Lambertus Koster | |
| G: | 20 mrt 1898 | 
| Laren NH | |
| O: | 19 dec 1969 | 
| Alida Carolina Maria Oosteweeghel | |
| G: | 23 mei 1900 | 
| Utrecht | |
| H: | ca. 5-1927 | 
| O: | 17 aug 1964 | 
| Laren NH | |