For 43 years, from 1911 to 1954, Cameron was headmistress of Firbank Church of England Girls' Grammar School, in Brighton, a suburb of Melbourne, Australia. During her tenure the school grew from 43 students to over 900 leaving Firbank one of the largest girls' schools in Australia. The founder of the school, Henry Lowther Clarke, wrote "My greatest service to Firbank was the discovery of Miss Cameron... seldom have School and Headmistress been so identified with the other." Prior to her tenure at Firbank she was on the teaching staff of Lauriston Girls' School and Presbyterian Ladies' College.
