I have been searching off and on for years for information about ancestors of my maternal grandmother, Apolonia Mazur. She died in 1918 in Philadelphia, PA. She married Kazimierz Zach on Jan 13,1918 in Philadelphia and had two children. She had a sister, Maria Mazur, who married Alexander Luczko in 1917 and moved to the Pittsburg, PA area and a brother, Ignace who was killed in a railroad work accident in Toledo, Ohio in 1917. Her parents were Jan Mazur and Julia Sobolak, believed to be from Sanok, Poland. I have been stimied on research on this line for over a quarter of a century and cannot seem to tie what information I have to any families, areas, passenger ship lists, immigration records, etc. Have resumed my research again and would appreciate any inputs or feedback that might be out there.