Hendrik Jaap Holthuis

Hendrik had a relationship with Petra Constance Rambonnet, daughter of Henri Gérard Rambonnet and Helena Catharina Coops. (Petra Constance Rambonnet was born on 25 Aug 1935 in The Hague, South Holland, Netherlands and died on 14 Oct 2010 in Warrenton, Cape Province, South Africa.)