I have some ancestors (great great grandparents) Frank Sinicki and Julia Reinke, that came from Poland. On the censuses they are on it claims that Frank arrived in America in 1880. I could not find him on the 1890 Census. I know for a fact he settled in Pittsburgh, PA. How do I find immigration records from 1880. And also, how would I know if his birth name might have been Franciszek or other variations, or was just Frank a name in Poland? Now on his wife, Julia Reinke, she came to America in 1881 along with her mother Mary Reinke and Father Karl Reinke. I found Karl and Mary in 1900 (both) and 1910 (Karl died, just mary living with sinicki family). Thanks for any help you can give me.