Searching for Wolk - Karaczewski family members

Hello,

I try to found my family members Wolk - Karaczewski who emigrate from Opita to America.

My Great Grandfather name was Antoni Wolk - Karaczewski and his father name was Adolf. Antoni have brothers and sisters one brother name was Jan and another brother name was Michal unfortunately I don't know others members names. I know that Michal emigrate to America and its possibility that change his last name to Wolk but Michal was not the only one from the family Wolk - Karaczewski who emigrate to America. So maybe someone know something? any information will be very important.

Thank you.

Viktorija.