Me pēnei te tohu i te whārangi:

R. K. Dell. Related biographies for 'Drummond, James Mackay', Dictionary of New Zealand Biography, first published in 1996. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/3d16/drummond-james-mackay/related-biographies (accessed 6 June 2023)