2021 Relativity
2021 Relativity
Pieter Kotvis(15 Jan 1872 - 5 May 1937)
Julia Grasle
Winfred Braun
Irene Florence Kotvis
b.  
d.  
b. 1 Jun 1902
d. 15 Jan 2002
updated 3/27/21
copyright 2021 Jean Wisner Dupon