High Quality Content by WIKIPEDIA articles! Trena Mary Cox (1895–1980) was an English stained glass artist. She was born in the Lower Bebington Urban District on the Wirral Peninsula and grew up around Birkenhead. She trained at the Laird School of Art. In 1924 she set up her studio in Chester, Cheshire, where she spent the remainder of her career. Most of her works are in churches in the old counties of Cheshire and Lancashire. She was a fellow of the British Society of Master Glass Painters. The authors of the Buildings of England series comment that "her windows are usually small, her figures modest, often with small-scale detail in the quarries" (small pieces of square or diamond-shaped glass set diagonally).