Karen
Andy/Andrew would have come to America as Andras and Mary as Maria. You might start in 1930 census to see what notation there is for your ancestors Na-naturalized, Al-alien or Pa-first paper.
Kmetz, Maria Csontosfaln 17 1887 1904
Kmetz, Andras Osikow 5 1895 1900
Kmetz, Andreas Hanusfala 35 1868 1903
Kmecz, Andras Osiko, Hungary 26 1883 1909
Kmecz, Andras Battanya, Hungary 31 1878 1909
Kmecz, Andras Tarnoka, Hungary 26 1883 1909
Kmecz, Andras Battonya 29 1878 1907
Kmecz, Andras Kisomasa, Hungary 2 1905 1907
Kmecz, Maria Somos 15 1885 1900
Kmecz, Maria Kakasfaln 16 1883 1899
Kmecz, Mary 1 1908 1909
Kmecz, Mary Felsodomonya 26 1880 1906 Only a sample of the ones that arrived NY Ellis Island.
www.ellisislandrecords.org Your father's church baptismal record should provide you with his parents names and place of birth.