hey!
i am from croatia and my mothers maiden surname was ivancic. there is lot of croatian ivancics from mount of cicaria (chicharija) and uchka.. near by slovenian border. there is also lots of ivancich in the villages: Brgudac, Brest, Zvoneca.. and after second world war they go or to america or to biger towns on the croatian coast (towns: Rijeka, Opatija, Volosko, Lovran)..
also i have lots of relatives in Ohaio and California.