Unkovich from Racisce Croatia.
Researching for friends. This Unkovich family emigrated to New Zealand in the late 19th century from Racisce on the island of Korcula,Dalmatia (now Croatia)in what was then Austro-Hungarian Empire.They were probably fishermen.They settled in Northland where they became gum diggers. (Kauri gum was harvested from the swamps.) Later some were farmers whilst others became wine makers etc.
History uncovered says that it is possible that Unkovich's could be originally from Belarus.
There seems to be just one family of Unkovich living in Racisce now as other families went to U.S.A and Western Australia.