Me pēnei te tohu i te whārangi:
Michael Fowler. Related biographies for 'Young, William Gray', Dictionary of New Zealand Biography, first published in 1998, updated o Hānuere, 2012. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/4y3/young-william-gray/related-biographies (accessed 3 May 2024)