Thank you to everyone that replied. My uncles are very happy to know the names of their great grandparents. They recall the brothers (Antoni and Łukasz) who married sisters. They never met Łukasz. He passed away 10 years before they were born.

Are there any records before Józef Sosinski's parents ...

Hello,

I am attempting to find some information about our Polish ancestors but have had a difficult time tracking down any information beyond the three Sosinski’s that immigrated to America.

- Lukasz Sosinski (born 1859 or 1860) immigrated to America first.

He was followed by

- his son Felix ...