2021 Relativity
2021 Relativity
Hendrik Bierling(27 Aug 1872 - 1 Aug 1960)
Dertje Bos(1874 - 1954)
Kees Mulder
Johanna Bierling
b.  
d.  
b. 22 Jan 1906, Obergum, Groningen
d.  
updated 3/27/21
copyright 2021 Jean Wisner Dupon