- "Mrs J. H. Riddell: The Novelist of the City and of Middlesex" (excerpts)
- Charlotte Eliza Lawson Riddell (née Cowan), carte-de-visite
Ellis, S. M. Wilkie Collins, Le Fanu and Others. London: Constable, 1931. 266ff. Internet Archive. Contributed by the Digital Library of India. Web. 1 June 2021.
created 1 June 2021