2021 Relativity
2021 Relativity
Dingenis Jan van Stelle(21 Nov 1868 - 29 Dec 1944)
Maria Cornelia de Lange(10 Nov 1868 - 11 Jan 1945)
Cyril Charles Gerard Coelen
Helena van Stelle
b. 1889
d. 1963
b. 6 Sep 1896, Amsterdam, NH
d. 4 Mar 1988, Durban, South Africa