2021 Relativity
2021 Relativity
Wilhelmus Joannes Josephus De Ruiter(7 Nov 1851 - )
Hendrika Johanna Wittenberg(8 Sep 1856 - )
Rudolf Hendrik De Ruiter
b. 14 Nov 1888, Rotterdam, ZH
d.  
updated 3/27/21
copyright 2021 Jean Wisner Dupon