a true "NZ bloodline" itself would be Maori,
Moriori
Moriori only ever lived on the Chathams.
How about the vikings?
Know what's an interesting and prevalent historical inaccuracy? Viking helmets having horns - they didn't (since Vikings weren't stupid enough to have helmets that their enemies could grab hold of in the heat of the battle).
Anyway. Carry on.

Maybe history was too harsh on the Vikings - I imagine the Angles and Saxons wouldn't have minded a few viking raids of raping and pillaging.
