Painter, muralist, draughtsman and teacher. Born Cyril Mahoney in London – his fellow-student Barnett Freedman rechristened him “Charlie” at the Royal College of Art, which he attended 1922–6, after a period at Beckenham School of Art under Percy Jowett – he early established a reputation as a conscientious teacher. He was at the Royal College 1928–53, from 1948–53 as a painting tutor, where he was noted for his concern for academic discipline. From 1954–63 he taught at the Byam Shaw School of Drawing and Painting and from 1961–8 at the Royal Academy Schools. He did mural work at Morley College, 1928–30, with Eric Ravilious and Edward Bawden, but this was destroyed during World War II. The work led to further murals: at Brockley School, Kent, with Evelyn Dunbar; and at Campion Hall Chapel, Oxford.