Ryerson index, viewed 3 May 2017 (BENNETT, Isobel Ida. Death notice: 12JAN2008, Death, [age] 98, late of Newport Beach. [Published in] Manly Daily 15JAN2008) http://www.ryersonindex.org
Isobel Bennett, Wikipedia, viewed 3 May 2017 (Isobel Ida Bennett AO 1984 (9 July 1909 - 12 January 2008) was one of Australia's best-known marine biologists) https://en.wikipedia.org/wiki/Isobel_Bennett