With her husband, John Mitchell, she published four volumes on the history of Māori in Nelson and Marlborough.
The second volume won the Montana New Zealand Book Award for history.
[3] The Mitchells wrote four volumes of a history of Māori of Nelson and Marlborough.
[4] The second volume, published in 2007, won the Montana New Zealand Book Award for history in 2008.
[5] The Mitchell's last book together was on British painter Isaac Coates, and was published in 2021.