Painter, teacher, political cartoonist and radical activist, born and lived in Stromness, Orkney Isles. MacInnes attended Gray’s School of Art in Aberdeen, 1939–41 and 1945–7, teachers including Robert Sivell and D M Sutherland. He went on to head the art department at Stromness Academy, becoming second master and then headmaster until retirement. MacInnes was a member of the 47 Group, which included Alberto Morrocco; took part in other mixed shows; and had numerous shows in Orkney, Aberdeen and Edinburgh, notably at the Torrance Gallery. MacInnnes was a painter of the landscape and people of Orkney, notably the politician Jo Grimond, composer Sir Peter Maxwell Davies, dialect poet Robert Rendall and writer and poet George Mackay Brown.