29 Nov 1937 - Geburt of ihr biological Vater Roelof

5 Apr 1938 - Geburt of her biological mother Maria at Netherlands 

1961 - Eheschließung of eltern

29 Jun 1990 - Tod of ihr biological Vater Roelof

14 Apr 2015 - Tod of her biological mother Maria at El Dorado, Butler, Kansas, USA 

18 Apr 2015 - Beerdigung of her biological mother Maria at White Chapel Memorial Gardens, Wichita, Sedgwick, Kansas, USA