Gezin: Dr. Petrus Gerardus DUKER / Julia Petronella de BOER (F1490)
getr. 1942Johan Laurens DUKER (1885-1920) 
|
Martientje DIJKSTRA (1880- ) |
| Joukje Harmina DUKER (1917-2001) |
| Petronella Catharina DUKER (1914- ) |
| Dr. Petrus Gerardus DUKER (1915- )
|
| Julia Petronella de BOER (1922-2000) |
| Ingeborg Liesbeth DUKER (1943- ) |
| Ronald Jan DUKER (1949- ) |
| Peter Ernst-Jan DUKER (1959- ) |