Me pēnei te tohu i te whārangi:

Adrienne Simpson and Kerry E. Cox. Links and sources for 'Sheppard, Doris Gertrude', Dictionary of New Zealand Biography, first published in 2000. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/5s15/sheppard-doris-gertrude/sources (accessed 20 April 2024)