2021 Relativity
2021 Relativity
Arend Walraven(1858 - 22 Feb 1920)
Siepke Lanenga(10 May 1865 - )
Harm Walraven
Janke Polkerman
b. 1889, Bedum, Groningen
d. 16 Jun 1924, Bedum, Groningen
b.  
d.  
updated 3/27/21
copyright 2021 Jean Wisner Dupon