genealodzy.pl

jbaltrym pisze: I will also be looking for grave sites and cemeteries in Poland.

Pniewo's cementary online:
http://www.polskie-cmentarze.com/pniewo ... hp?id=form

There are a few Wierzchońs but no people with Sas surname. The oldest Wierzchoń's grave is from 1920s.
It's possible that older graves simply did not survive.

Of course, there are more cementaries in the area. However, I would expect that Aleksandra Sas's grave would be located in Pniewo.