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- 1898 - 1913 Editha Knocker
- 1913 - 1915 Editha Knocker & Leila Willoughby
- 1923 - 1939 Alex J. Cooper
- 1946 - 1971 Geoffrey Stevens
- 1971 - 1975 Ronald Easey
- 1977 - 1980 Sheila Hawken
- 1980 - 1985 Hazel Henderson
- 1985 - 1988 Catherine Van de Weyer
- 1989 - Claire Jowett
