2021 Relativity
2021 Relativity
Evert Boer(19 Mar 1868 - 5 Sep 1951)
Fenje Lanenga(13 Feb 1868 - 21 Jul 1941)
Derk Boer
Jantje Ridder
b. 25 May 1899, Bedum, Groningen
d. 19 Mar 1939
b.  
d.  
updated 3/27/21
copyright 2021 Jean Wisner Dupon