Impact on NZ society by Scandinavian Emigration?

I am doing a research project for school and since I have always been very interested in Scandinavians, I chose to research them. I really really really need a primary written source on how the Scandinavians impacted New Zealand society anywhere between the 1860's and the 1880's. It could be anything, as long as it's a primary written source and I will cite you too if you give me permission to use your resource, please help: D A primary source is information from the time being studied, e.g. a newspaper clipping immediately following the event studied, an eyewitness diary entry. P.S. If you can't find, or do not know of any primary written sources, I would still GREATLY appreciate any source on their impact.