'The North British Railway' 1955; 'The Midland Railway' 1953; 'The pictorial encyclopedia of Railways' 1968; 'British Railway History', two volumes 1830-1876 and 1877-1947; 'Railway Carriages in the British Isles 1830-1914' 1965; 'Nineteenth Century Railway Carriages' 1949; and seven others (11)