2021 Relativity
2021 Relativity
Willem Kapteyn(22 Nov 1776 - 3 Sep 1858)
Dirkje van Velthuizen(22 Nov 1790 - 22 Jun 1865)
Arie Kapteyn
b. 6 Jan 1825, Bodegraven, ZH
d.  
updated 3/27/21
copyright 2021 Jean Wisner Dupon