2021 Relativity
2021 Relativity
Jan Dupon(17 Apr 1864 - 29 Sep 1936)
Grietje de Jong(5 Oct 1870 - )
Tjerd Dupon
b. Dec 1912, Suameer, Friesland
d. 18 Mar 1913, Suameer, Friesland
updated 3/27/21
copyright 2021 Jean Wisner Dupon