Me pēnei te tohu i te whārangi:

Erik Olssen. Links and sources for 'Pinkerton, David', Dictionary of New Zealand Biography, first published in 1993, updated o Noema, 2010. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/2p17/pinkerton-david/sources (accessed 15 May 2024)