2021 Relativity
2021 Relativity
Franciszek Siecienski(1825 - )
Agata Sulkowska(1821 - )
Franciszek Siecienski
b. 2 Apr 1861, Ruszkowo, Sobowo, Poland
d.  
updated 3/27/21
copyright 2021 Jean Wisner Dupon