2021 Relativity
2021 Relativity
Freerk van der Wal(27 Oct 1866 - 20 Oct 1949)
Harmke de Haan(4 Nov 1871 - )
Dettje van der Wal
b. 20 May 1897
d.  
updated 3/27/21
copyright 2021 Jean Wisner Dupon