He Whakaputanga - Whose hand was it that crafted these words

Here's the story of the writing of He Whakaputanga. You can see the original He Whakaputanga document at the He Tohu exhibition.
He Tohu is a permanent exhibition of three iconic constitutional documents that shape Aotearoa New Zealand. Come visit at the National Library, Wellington. Find out more at natlib.govt.nz...
He Tohu is a permanent exhibition of 3 iconic constitutional documents that shape Aotearoa New Zealand.
The documents are:
1835 He Whakaputanga o te Rangatiratanga o Nu Tireni - Declaration of Independence of the United Tribes of New Zealand
1840 Te Tiriti o Waitangi - Treaty of Waitangi
1893 Women’s Suffrage Petition - Te Petihana Whakamana Pōti Wahine
He Tohu is presented by Archives New Zealand Te Rua Mahara o te Kāwanatanga and the National Library of New Zealand Te Puna Mātauranga o Aotearoa, both of which are part of the Department of Internal Affairs.he