| Gezinsblad |
|
Joannes Georgius van der Knaap, birth 25 Jan 1842 Maassluis, died 18 Apr 1921 Delft, son of Simon van der Knaap and Johanna Lens
Married 24 Jul 1867 Delft to: Apolonia Steijger, birth 1843 Vlaardingen |
| 1) Jorina Klazina van der Knaap, birth 6 Nov 1840 Maassluis, died 20 May 1847 Maassluis |