Gezin: DUQUENNE Alfons Henri / DE COSTER Philomena Ludovica (F1602945518)
 | DE COSTER Florentinus (1871- ) |
 | VINCK Maria Delphina (1867- ) 
|
| DE COSTER Pelagia Francisca (1898-1898) |
| DE COSTER Petrus Joannes (1900-1983)  |
| DE COSTER Charles Louis (1901-1977) |
| DE COSTER Frans (1902-1903) |
| DE COSTER Jan Joseph (1903- ) |
| DUQUENNE Alfons Henri (1905-1967) |
| DE COSTER Philomena Ludovica (1905-1974)
|