2 Aug 1890 - Geburt of sein natural Vater Jacobus at Noordwijk, Zuid-Holland, Netherlands
5 Jan 1891 - Geburt of seine natural Mutter Helena at Alkemade, Zuid-Holland, Netherlands
1 Feb 1912 - Eheschließung of eltern at Lisse, Lisse, Zuid-Holland, Netherlands
24 Dez 1957 - Tod of sein natural Vater Jacobus at Amsterdam, Amsterdam, Noord-Holland, Netherlands