2021 Relativity
2021 Relativity
Jozef Kopycinski(13 Mar 1870 - Oct 1946)Alfred Riepel(1892 - 1979)
Maryanna Sławinska(25 Jan 1873 - Oct 1961)Alice Flanagan(1894 - )
Benjamin Kopert 
Alice Sophie Riepel
b. 1911, Jersey City, NJ
d. Jan 1970
b. 22 Jun 1912, Jersey City, NJ
d. 20 Oct 2001, Somerset, NJ