Clasina de Wit, born in Voorburg on December 13, 1882, daughter of Denys de Wit and Clasina van Dijk.

Clasina was married in Voorburg on May 22, 1907, at the age of 24 to
Bouk Daniel de Jong (aged 26 years), born in The Hague in the year 1881, son of Cornelis de Jong and Gelske Feenstra.