- Gregg, Robert (1 January 2007). "Valleys of fear: Policing terror in an imperial age, 1865–1925". In Grant, Kevin; Levine, Philippa; Trentmann, Frank (eds.). Beyond sovereignty. Palgrave Macmillan UK. pp. 169–90. doi:10.1057/9780230626522_9. ISBN 9781349540891.
- Wynne, Catherine (2002). The Colonial Conan Doyle: British Imperialism, Irish Nationalism, and the Gothic. Greenwood Press. ISBN 978-0-313-32005-7.
- Kestner, Joseph A. (1997). Sherlock's Men: Masculinity, Conan Doyle, and Cultural History. Ashgate. ISBN 978-1-85928-394-3.
- Conan Doyle and an Anglo-Irish Quarrel, Jane Stanford, Carrowmore, 2017, pp. 50–57.
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