2021 Relativity
2021 Relativity
William Valkenburg(21 Apr 1917 - 5 Aug 2010)
Jenny van der Lugt(23 Sep 1916 - 15 May 1998)
Robert James Valkenburg
b. 2 Feb 1949, Redlands, CA
d. 26 Nov 2005, Coalingą CA
updated 3/27/21
copyright 2021 Jean Wisner Dupon