Liz Hewer has been Head of St George’s since September 2016. She attended the all-girls King's High School in Warwick, going on to Jesus College, Cambridge to study Geography and later complete her PGCE. At Cambridge, she was Captain of the Cambridge University Women's Hockey Club, gained three full Blues for hockey and played for the British Universities. She also gained two Half Blues for cricket.

She has taught Geography, coached hockey, netball and tennis, sung in choirs and led outdoor activities at Bedford School, Marlborough College and the Royal Grammar School in Guildford. Prior to joining St George’s, Mrs Hewer spent 10 years at nearby St Mary's Ascot where she was a Geography teacher, Housemistress, Director of Studies and latterly Pastoral Deputy Head for 7 years. Outside St George's, Mrs Hewer is Chair of the Girls Schools Association Boarding Committee and an experienced school Governor and ISI Inspector. Mrs Hewer lives on-site at St George’s with her partner and her two children.