2021 Relativity
2021 Relativity
Gerrit de Jong(25 Apr 1884 - 17 Nov 1966)
Apolonia Valkenburg(11 Feb 1892 - 30 Nov 1967)
Johannes Joe de Jong
b. 1919
d. 1991
updated 3/27/21
copyright 2021 Jean Wisner Dupon