1909
A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.II, p.816, CCLXIII 24, as ‘Daybreak over the mountains’. c.1820–30.
1975
Andrew Wilton, Turner in the British Museum: Drawings and Watercolours, exhibition catalogue, Department of Prints and Drawings, British Museum, London 1975, p.56 no.73, reproduced, as ‘Daybreak over mountains’. c.1819.
1997
Eric Shanes, Turner’s Watercolour Explorations 1810–1842, exhibition catalogue, Tate Gallery, London 1997, pp.27, 95, 98, 104 (Appendix I under ‘England and Wales Series’, as ‘?Study for the Snowdonia background of Harlech Castle, North Wales’. c.1835), (p.98 under ‘Italy’, as ‘Possibly a view near Rome’), (p.104 Appendix II, as ‘Study: ?Background of Harlech Castle/view near Rome’).