Me pēnei te tohu i te whārangi:

Robin Ormerod. Related biographies for 'Henry, Richard Treacy', Dictionary of New Zealand Biography, first published in 1993, updated o Hūrae, 2013. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/2h30/henry-richard-treacy/related-biographies (accessed 20 April 2024)