Strijdom / Strydom / van Strydonck / van Strijdonck - Welkom - Welcome - 'n projek met 'n fokus op yDNA. - a project with a focus on yDNA . Our aim is to map the yDNA back to / Ons doel is om die y-DNAtot terug na Joost Strijdom / Strydom (b.1641 Netherlands/Belgium - d.1719 Cape) op te spoor deur ‘nverteenwoordigende monster van sy lewende nageslag saam te stel. / from a representative sample of his living descendants. See the web page above:.