Me pēnei te tohu i te whārangi:

Beryl Hughes. Links and sources for 'Hetherington, Jessie Isabel', Dictionary of New Zealand Biography, first published in 1996. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/3h20/hetherington-jessie-isabel/sources (accessed 20 April 2024)