Hi - I tried to email you at the address on your message but it came back. Your grandfather's name was Skubaja when he came to this country. He arrived with his brother Jan or John in December of 1923 to join his father Franz or Frank and his sister Mary or Maria in Minneapolis. My husband is your grandfathers sister Mary's, grandson. You can find your grandfathers Ellis Island arrival in Ancestry.com. I may have the spelling wrong but his first name was Tadeus or something very close to that. As far as we know, there were no other siblings left behind in Poland.