Laura Muntz Lyall was born in England in 1860. After immigrating to Canada with her family much of her childhood was spent in the Muskoka region. As a young adult she moved to Hamilton.
Lyall took private art lessons from Hamilton's William Charles Forster. She studied art in Paris in the 1890's where she won many honours. She was also a member of The Royal Canadian Academy of Arts.
Upon her return to Canada she taught life classes at the Hamilton Art School for several years.
Lyall moved to Toronto in the early 1900's. With the exception of several years spent in Montréal, she remained in Toronto for the rest of her life.
Lyall painted in oil and water colours. She was best known as an impressionist and figure painter.
She died in Toronto in 1930.