Canadian visual art has been dominated by figures such as Tom Thomson – the country's most famous painter – and by the Group of Seven. Thomson's career painting Canadian landscapes spanned a decade up to his death in 1917 at age 39. The Group of Seven were painters with a nationalistic and idealistic focus, who first exhibited their distinctive works in May 1920. Though referred to as having seven members, five artists—Lawren Harris, A. Y. Jackson, Arthur Lismer, J. E. H. MacDonald, and Frederick Varley—were responsible for articulating the Group's ideas. They were joined briefly by Frank Johnston, and by commercial artist Franklin Carmichael. A. J. Casson became part of the Group in 1926. Associated with the Group was another prominent Canadian artist, Emily Carr, known for her landscapes and portrayals of the Indigenous peoples of the Pacific Northwest Coast. Since the 1950s, works of Inuit art have been given as gifts to foreign dignitaries by the Canadian government.