You mention Gorfunkel/Gorfunkle. Two of my Guttenberg great aunts and uncles from Sheffield, Yorks, UK (their parents came to Hull in c1865, then Grimsby and then Sheffield) from Rajgrod in Lomza gubernia and Razcki  in Suwalki gubernia) married a brother and sister Gorfunkle from Manchester, whose parents had also come from Suwalki gubernia in the 1860's. 

Jill Whitehead, Surrey, UK