Me pēnei te tohu i te whārangi:

Margaret Christensen. Related biographies for 'Sutherland, Olive Rose', Dictionary of New Zealand Biography, first published in 2000. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/5s56/sutherland-olive-rose/related-biographies (accessed 16 April 2024)