Our Family History
Gezin: Jan Lammertsma / Henderica de Vries (15752934)
 | Ynte Lammertsma (1877-1957) 
|
 | Antje Gorter (1883-1942) |
| Tjitske Lammertsma (1904- )  |
| Johanna Frederika Lammertsma (1905-1974) |
| Lambertus Lammertsma (1907-1982) |
| Johannes Lammertsma (1909-1983) |
| Doutje Lammertsma (1910-2000) |
| Dirk Lammertsma (1913-1982) |
| Anna Margaretha Lammertsma (1914-2005) |
| Jantje Lammertsma (1924-2014) |
| Jan Lammertsma (1916- )
|