Complex sentence: A graduate of St Paul's Girls' School, Hammersmith, she matriculated at the Royal Horticultural School, where she earned her General Horticultural Diploma (in 1924), and later studied at the Architectural Association School (London) as well.
Split into simpler sentences: A graduate of St Paul's Girls' School, Hammersmith, she matriculated at the Royal Horticultural School, where she earned her General Horticultural Diploma (in 1924). She later also studied at the Architectural Association School (London) as well.