My daughter is trying to complete a project on our family. I thought it would be a good idea to help her and satisfy my curiosity. My father's grandfather was Jacob Pietras. he came to the United States around 1902 from Poland and settled in Pittsburgh. He married Antoinette (don't know last name). They had a son named Valentine (my grandfather). He married Mary Walkowiak. They had 2 sons (Norbert, my uncle and Robert, my dad). My dad was born in 1928 and my uncle was born around 1919. My uncle has since died and my dad can't remember a lot of the details. Any help anyone can provide would be greatly appreciated.