Trevor is fascinated by the cultural crossover.
"The way in which people carve out new lives for themselves which would have been completely alien.
"At the same time Maori were crossing cultures as well. They went to Australian, Europe, Britain and New York and when they came back they could not assimilate back into Maori culture."
It was a turbulent period and Trevor says there are a lot of untapped stories which other authors are starting to realise. The pre-1840 era is a treasure trove for historians, he says.
The anthology is Trevor's fifth New Zealand history book.
His previous books were Pakeha Maori — the extraordinary lives of the Europeans who lived as Maori in early New Zealand, Captured by Maori — White female captives, sex and racism on the 19th century frontier, Cannibal Jack — the story of a Pakeha Maori and Tribal Guns and Tribal Gunners — the history of Maori artillery in 19th century New Zealand.
Trevor's anthology is inspired by Pakeha Maori after locating six, then 20 first-hand accounts. He is a member of the local Tauranga Writers' Group and U3A history group.