who wrote the english version of the treaty of waitangi
William Hobson, with the help of his secretary James Freeman and the British Resident James Busby.
Treaty of Waitangi
Without a draft document prepared by lawyers or Colonial Office officials, Hobson was forced to write his own treaty with the help of his secretary, James Freeman, and British Resident James Busby, neither of whom was a lawyer. 
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Treaty of Waitangi [SEP] Drafting of the treaty
Without a draft document prepared by lawyers or Colonial Office officials, Hobson was forced to write his own treaty with the help of his secretary, James Freeman, and British Resident James Busby, neither of whom was a lawyer. Historian Paul Moon believes certain articles of the treaty resemble the Treaty of Utrecht (1713), the British Sherbro Agreement (1825) and the treaty between Britain and Soombia Soosoos (1826). The entire Treaty was prepared in three days, in which it underwent many revisions. There were doubts even during the drafting process that the Māori chiefs would be able to understand the concept of relinquishing "sovereignty".