Me pēnei te tohu i te whārangi:

Hilary Stace. Related biographies for 'Greenwood, Ellen Sarah', Dictionary of New Zealand Biography, first published in 1993. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/2g19/greenwood-ellen-sarah/related-biographies (accessed 25 April 2024)