Me pēnei te tohu i te whārangi:

Ian J. Lochhead. Related biographies for 'Beaven, Peter Jamieson', Dictionary of New Zealand Biography, first published in 2022. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/6b12/beaven-peter-jamieson/related-biographies (accessed 11 December 2023)