Kathleen Moir Morris was born in Montréal in 1893. She studied under artists William Brymner and Maurice Cullen at the Art Association of Montréal.
In the 1920's Morris joined a group of women artists, known as the Beaver Hall Group, together the rented a studio in an old building on Beaver Hall Hill. They exhibited with the notable Group of Seven internationally. Morris herself only had one solo exhibition in 1939.
In1929 Morris became a member of the Royal Canadian Academy.
Morris often portrayed winter scenes of Québec and eastern Ontario. Her subject matter often consisted of churches, markets, animals and carriages. She had a unique painting style that was a result of a nervous system disorder that affected her brush strokes.
Morris died in 1986.
Morris’s paintings are part of the collections of major Canadian galleries and museums including the National Gallery of Canada, the Art Gallery of Ontario and the Montreal Museum of Fine Arts, among others.