Your browser does not support AJAX. Please, select the following link to fully enjoy this site. View without AJAX technology Gerardus Johannes van ZonA Birth: 23 Mar 1923 in Delft Death: 17 Sep 1980 in Delft ParentsBornDiedJacobus Petrus van Zon28 May 1890 26 May 1964 Johanna Catharina Geertruida van Leeuwen11 Nov 1887 13 May 1968 Last updated: 22 August 2018 | Change history Joaktree 1.5.3 (2009-2024)