Isaac Zerkowski
b. ca 1800

Ernestine (Esther) Gruenberg
b. ca 1800

Simon Zerkowski
b. ca 1826 Poland, Greater Poland Voivodeship, Raschkow
d. 25/08/1900 Poland, Schlesien, Beuthen

Rachel Land
b. 1831-32 Poland, Kuyavian-Pomeranian Voivodeship, Danzig
d. 25/04/1889 Poland, Kuyavian-Pomeranian Voivodeship, Danzig

Sabine Zerkowski
b. 14/04/1860 Poland, Kuyavian-Pomeranian Voivodeship, Danzig