Me pēnei te tohu i te whārangi:

Ray Grover. Links and sources for 'Westmacott, Herbert Horatio Spencer', Dictionary of New Zealand Biography, first published in 1996. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/3w7/westmacott-herbert-horatio-spencer/sources (accessed 13 May 2024)