Genealogy / Looking for family! Nieslawski [4]

My name is Kathy and I am looking for any relatives of John Nieslawski married to Rose. My grandfather was Antoni Nieslawski and I know there was a brother named Stanley and I believe, Vincent. Antoni, my grandfather was born in Krawkowka, Poland on December 3, 1892.

I want to know more about our family and if their are relatives!