By the time of his mid-twenties Maryon attended three art schools, apprenticed in silversmithing with C. R. Ashbee and worked in Henry Wilson's workshop. From 1900 to 1904 he served as the director of the Keswick School of Industrial Art, where he designed numerous Arts and Crafts works. After moving to the University of Reading and then Durham University, he taught sculpture, metalwork, modelling, casting, and anatomy until 1939.