1909
A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.II, p.822, CCLXIII 110, as ‘Castle on rock, with sea beyond’. c.1820–30.
1997
Eric Shanes, Turner’s Watercolour Explorations 1810–1842, exhibition catalogue, Tate Gallery, London 1997, pp.18, 96, 98, 105 (p.96 Appendix I under ‘England and Wales Series’, as ‘Study for Harlech Castle, North Wales’. c.1835, p.98 under ‘Harlech Castle, Gwynedd?’, p.105 Appendix II, as ‘Study: Harlech Castle, North Wales’).
2007
David Blayney Brown, Turner Watercolours, exhibition catalogue, Tate Britain, London 2007, p.83, reproduced in colour, as ‘Harlech Castle: Preparatory Study’. c.1830–5.