1. “A Review of Railway Salaries, VII.”1912Railway Clerk, 210–212.
2. Anderson, G.Victorian Clerks. Manchester: Manchester University Press, 1976.
3. Anderson, G. “The Social Economy of Late-Victorian Clerks.” In The Lower Middle Class in Britain 1870–1914, edited by GeoffreyCrossick, 113–133. London: Croom Helm, 1977.
4. Bagwell, P. S.The Railwaymen. The History of the National Union of Railwaymen. London: Allen & Unwin, 1963.
5. Bagwell, P. S.The Railway Clearing House in the British Economy, 1842–1922. London: Allen & Unwin, 1968.