Stella E. Grier was born in 1898. She studied with her father Sir Wyly Grier, a well-known portrait painter for several years. Afterwards she studied at the Art Students League in New York, St. Martins' School, Goldsmith College and the New Cross School in London, England.
On her return to Canada, Grier became a free lance commercial artist in Toronto, where she worked at the T. Eaton's Store, and in Boston.
Grier later returned to England where she taught children's fashion drawing at the Carlton Studios in London.
Returning to Canada again, she taught at King's Hall, Compton Québec and later at the Department of Archaeology at the Royal Ontario Museum. Grier also illustrated children's school books.
Grier mostly worked in pastels but also did some oil painting. Her work has been exhibited in London, the United States, South America and in Canada.
In 1930, Grier was elected an Associate of the Royal Canadian Academy.
She died in 1994.