Wenona's fifth Headmistress and the last one to be referred to as a Headmistress. Preceded as Headmistress by Mills and succeeded by Principal Hadley. Headmistress from 1967 until 1994. Miss Jackson incorporated an international perspective to the School. She received an MBE (Order of the British Empire - Member, Civil) on 3 June 1978. This was "for service to education particularly as a member of the School's Commission for Non-Government Schools."