Elizabeth Adela Forbes was a Canadian painter who was primarily active in the UK. She often featured children in her paintings and School Is Out is one of her most popular works. She was friends with the artists James Abbott McNeill Whistler and Walter Sickert, both of whom influenced her work. Her etchings in particular are said to show the influence of Whistler.
Born in Kingston, Ontario, Elizabeth Armstrong was the youngest child of William Armstrong, an employee of the Government of Canada. Born in her fathers old age, she was educated privately in Canada and then allowed to further her artistic studies in England with her mother as chaperone. Her father died two months later, after which she and her mother lived with an uncle in Chelsea, London. They lived next door to Dante Gabriel Rossetti, but she never met him.
Source: Wikipedia