After some reading and asking around, we found out that Dalmatians and Croatian immigrants started arriving to Northland region of New Zealand in 1880s to work on the gumfields.
The ones that stayed, started forming what later became quite a sizeable community living in the area.
Dalmatia became part of Yugoslavia in 1929. Croatia incorporated the Dalmatian territory after Yugoslavia fell apart.
Thus, some confusion emerged regarding the heritage, as some wanted to call themselves Croatians, others - Yugoslavs. Political beliefs raised the tension after the war in Balkans, until Auckland Yugoslav society decided to go back to the name of Dalmatians.