Painter and teacher, born in London, who studied at Royal College of Art, 1957–60. He gained a Silver Medal there in 1960 and Prix de Rome, 1960–1. He was a part-time lecturer at Ravensbourne and Hornsey, 1961–2, senior lecturer in painting at Manchester College of Art, 1962–7, then for many years was principal lecturer in charge of painting at Sheffield Polytechnic from 1967. Mixed exhibitions included Young Contemporaries, John Moores Liverpool Exhibition, RA, Arts Council touring exhibitions and elsewhere, including one of four painters at Mistral Galleries, 1992. Had a series of solo shows with Piccadilly Gallery from 1962, Mappin Art Gallery in Sheffield in 1978 and several at John Davies Fine Art from 1989. Peacock was noted as an atmospheric painter of landscape.