Painter and teacher, born in Falkirk, Stirlingshire. He studied at Edinburgh College of Art, 1956–60, then a travelling scholarship took him to the West Indies and Latin America. Johnstone won a number of awards including an Arts Council Award in 1970 and an RSA Lothian Region Award in 1981. From 1963 he taught at Edinburgh College of Art. Johnstone showed regularly at RSA, of which he was an associate, and SSA and participated in other group exhibitions in Britain and abroad. Solo exhibitions included Mercury Gallery and Compass Gallery, Glasgow. Arts Council, Scottish Arts Council and other British and foreign collections hold his work. Johnstone’s work was hard to define, and at various times he was included in shows of New Symbolist and Poetic Realist painters.
Text source: 'Artists in Britain Since 1945' by David Buckman (Art Dictionaries Ltd, part of Sansom & Company)