Lucy and Tom at School

Shirley was born in West Kirby, near Liverpool, and studied fashion and dress design at Liverpool Art School, before continuing her studies at the Ruskin School of Drawing and Fine Art in Oxford. She then embarked on a career as a freelance illustrator in London, where she still lives today. She illustrated other writers' work, including Noel Streatfeild, Alison Uttley, Ian Seraillier, Margaret Mahy and notably Dorothy Edwards's My Naughty Little Sister series.