2021 Relativity
2021 Relativity
Jan Dupon(17 Apr 1864 - 29 Sep 1936)
Grietje de Jong(5 Oct 1870 - )
Gjalt Dupon
Grietje Wielinga
b. 17 May 1896, Nijega, Friesland
d. 16 May 1974
b. 23 Mar 1892, Tietjerk, Friesland
d. 4 Jan 1966, Tietjerk, Friesland