Independent New Zealand historian. Author of Black November, analysis of the 1918 influenza pandemic in New Zealand.
Geoff has been instrumental in lobbying for two public memorials to the New Zealand victims of the 1918 influenza pandemic.
The national memorial was unveiled on 6 November 2019 by the Prime Minister, Jacinda Ardern, with Geoff assisting.
In Christchurch, a small plaque was installed near Christchurch Hospital in August 2020, in memory of the 460 Christchurch victims of the pandemic. This was funded by members of the Canterbury History Foundation.