Hi,
my grandfather was Frank Polak, immigrated via Ellis Island in 1907. He was 1 of 11 children, none I believe were named joseph though. He settled in Milwaukee but also had relatives in Illinois I think. He had a Great great grandfather named Tomas Polak born in 1773 in Laskarska Nova Ves, Slovakia. I have quite a bit on the family. Let me know if this pans out. Take Care,
Tom