Oldest Piwowarczyk is Vincent. As the Czar′s (Tsarist ) Soldier , died in Ukraine in 1914 the year. I know that he had a brother. The name I do not know, but had a son Bronisław. Before the war the family Piwowarczyk lived in the village Jatwieź close by Wolkowysk.
NK.pl is a social networking site for the names of 25 results from Bialystok http://nk.pl/#search?query=piwowarczyk&city=białystok&gender=&min_age=&max_age=
