The Old Girls’ Association has developed a vision of its role over the last decades. In the 1930s, Old Girls kept in touch with each other mainly to share news of their travels, academic achievements, engagements, marriages and the births of their children.

Mrs Fargher injects it with new life and under Ms King it continues to extend its network, undertaking roadshows to Cape Town, Durban, Stellenbosch and Knysna; in 2018 Ms King hosts a cocktail party in London. Through various functions at school, the Association encourages loyalty and commitment to the school and engagement in its projects.

One popular event favoured by the Old Girls’ Association is the St Mary's Investec Hockey Festival. Another is Old Girls’ Day, which brings together many generations of Old Girls and some teachers, past and present. Always surrounded by Old Girls at these functions is Wendy Nathan, former deputy head and sports’ teacher and known for her devotion to the school. Her wit and witticisms are legendary. There are networking evenings and annual gatherings of Old Girls who have elected to send their daughters to the school.