[1] Her sister Edith Agnes Cook (1859 – 2 April 1942), principal of the Advanced School for Girls in Franklin Street, Adelaide, married Samuel Grau "Sam" Hübbe ( – c. 15 October 1900) on 3 January 1885, and late that year resigned from the school, to be replaced by Madeline Rees George (c. 1851–1931).
[2] Enrolments soon outgrew the space available and they purchased another house in Statenborough Street, which served until 1921, when they retired.
[2][3][4] In 1922 the school was taken over by Misses Jones and Wells, "who are employing the Dalton and Montessori methods",[5] but appears not to have survived beyond 1922.
The Misses Jones and Wells were, with Calder, Eurhythmics teachers, of which Heather Gell was in South Australia the chief exponent.
In September 1996 the Burnside Historical Society affixed a memorial plaque at the premises, 28 Statenborough Street, Leabrook, in recognition of Mrs Hübbe’s Knightsbridge School.