2021 Relativity
2021 Relativity
Frans Sander(28 Mar 1864 - 25 Oct 1931)
Trijntje Sipsma(13 Mar 1870 - )
Willem Herman Sander
b. 20 Aug 1897, Garnwerd, Groningen
d.  
updated 3/27/21
copyright 2021 Jean Wisner Dupon