Alfred Joseph Casson OC RCA (May 17, 1898 – February 20, 1992) was a member of the Canadian group of artists known as the Group of Seven. He joined the group in 1926 at the invitation of Franklin Carmichael, replacing Frank Johnston. Casson is best known for his depictions in his signature limited palette of southern Ontario, and for being the youngest member of the Group of Seven.

https://en.wikipedia.org/wiki/A._J._Casson