2021 Relativity
2021 Relativity
Julian Derkowski
Maryanna Włoczewska
b.  
d.  
b.  
d.  
Children
Piotr Derkowski(1892 - )
Emilia Derkowska(1883 - 19 Oct 1954)
updated 3/27/21
copyright 2021 Jean Wisner Dupon