I am searching for my father’s Polish ancestors. My great-grandfather emigrated to America around 1900, he was born in 1882. He gives his name as Albert Gwozdz, sometimes spelled Gworzdz. He had listed his Polish parents as Martin Gwozdz and Agnes Gwozdz.
My 23andMe ancestry kit lists my ancestry most likely coming from Podkarpackie Voivodeship, and possibly the Masovian, Lublin, and Lesser Poland regions.