In 1923 the Haworths immigrated to Canada, where Peter was appointed Director of Art at the
Central Technical School in Toronto. Bobs Haworth taught ceramics at the Central Technical School from 1929 to 1963. Peter Haworth accepted
Doris McCarthy for a teaching job at the school late in 1931 on the basis of a portfolio of her work. She says of him in her autobiography, "Peter Haworth was a young, good-looking, curly-headed autocrat, who was gradually transforming a mediocre secondary-school art department into a dynamic powerhouse. Instead of hiring teachers who had taken summer courses in art, he hired artists and hoped they could teach." He gave the artists very little guidance, expecting them to work out how to do the job. While teaching Peter Haworth also accepted commissions to undertake stained glass work. These included fourteen panels for the
First Baptist Church, Ottawa, which drew favorable attention to his work in 1929. In 1931 he exhibited a painting
Outhouses with the
Canadian Society of Painters in Water Colour. The
National Gallery of Canada bought this painting in 1932. He was elected president of the Canadian Society of Painters in Water Colour by 1936. Haworth was also a member of the
Ontario Society of Artists. Both Peter and Bobs Haworth made illustrations for
Kingdom of the Saguenay (1936) by
Marius Barbeau. In 1938 three of his watercolors were exhibited at the
Tate in London in the show
A Century of Canadian Art. The Haworths also collaborated on illustrating
James Edward Le Rossignol's
The Habitant Merchant (1939). ==World War II and after==