- J. Newman, Buildings of Wales, Gwent, 1995. p 536;,
- D.S.M. Barrie, Regional History of the Railways of Great Britain, 12, South Wales, 1980, p 116;,
- S. Owen-Jones, The Penydarren Locomotive, National Museum of Wales, 1981, front cover illustration;,
- www.trevithick2004.co.uk/page8.html, 2002, photo.,