Me pēnei te tohu i te whārangi:

Bronwyn Jones. Related biographies for 'Ostler, Emma Brignell', Dictionary of New Zealand Biography, first published in 1993. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/2o12/ostler-emma-brignell/related-biographies (accessed 26 April 2024)