Mary Wrinch was a Toronto-based artist, known for her landscapes and floral compositions. Her style and subject matter both predated and foreshadowed the Group of Seven's modernist treatment of the Canadian landscape.

She studied at the Ontario Central School of Arts and Design and later studied miniature painting in Europe. She was known primarily as a miniature artist for the beginning of her career.

In 1906 a visit to a friend's cottage on Lake Muskoka changed her perspective and her art. She was so inspired by the rivers, lakes, and forests of the Muskokas that she started experimenting with her creative process. Instead of making preliminary drawings, she tried painting directly onto large canvases, interpreting the natural world around her as she went. By 1910 Wrinch had built her own studio at Kingwood near Lake of Bays which she used as a base for canoeing and sketching.

In the Winter months, Wrinch worked in Toronto at her Wychwood Park studio.

In 1922 Wrinch married her former teacher, George A. Reid. The two traveled Northern Ontario, Quebec, and Nova Scotia on painting trips.

In 1928, at the age of 51, Wrinch's style changed again. She began experimenting with linoleum block printing, interpreting the landscapes of her paintings into intricate prints that featured rich colours and strong outlines. She was also very interested in studying flowers and many of the prints feature flowers from her own garden.