2021 Relativity
2021 Relativity
Franciszek Jankowski(2 Oct 1873 - 26 Dec 1950)
Helena Kwasniewska(2 Mar 1880 - 4 Jul 1952)
Zygmunt Jankowski
b. 24 Jul 1894, Poland
d. Mar 1967, NJ
updated 3/27/21
copyright 2021 Jean Wisner Dupon