This page gives more information about Gerrit Knaap's brothers and sisters, most of whom moved to Rotterdam after they were married.
MARIA ELISABETH KNAAP (b.3.9.1849 Hague, d.Rotterdam?)
Married (24.4.1872 Hague) to J.VISSER (b.? d.?)...they left for Rotterdam on 24.4.1872
Children from this marriage ?
HERMIJNTJE DIDERIKA WILHELMINA KNAAP (Mina) (b.23.12.1851 Hague, d.?)
Married (13.6.1877 Hague) to GERARDUS JOHANNES FREDERIK ANDERS, a civil servant, (b.? d.?)
Children from this marriage ?
JACOBA KNAAP (b.21.5.1854 Hague, d.Rotterdam?)
Married (13.6.1877 Hague) to L. HOTKE (b.? d.?)...they left for Rotterdam 13.6.1877
Children from this marriage ?
DIDERIKA WILHELMINA KNAAP (Riek) (b.31.12.1856 Hague, d.Rotterdam ?)
Married (1.8.1877 ? Hague?) to CORNELIS VAN DER MEER (b.? d.?)...they left for Rotterdam 1.8.1877
Children from this marriage ?
DANIEL KNAAP, a smith, (b.28.5.1859 Hague, d.Rotterdam?)
left for Rotterdam
19.2.1879 with his parents and younger brother Jannetje.
It is not known if Daniel or Jannetje married and had children.