1909
A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.II, p.820, CCLXIII 73, as ‘Dark clouds’. c.1820–30.
1997
Eric Shanes, Turner’s Watercolour Explorations 1810–1842, exhibition catalogue, Tate Gallery, London 1997, pp.27, 94, 96, 101, 102, 104 (p.94 Appendix I under ‘Cornwall’, as ‘?Study for the downbrushing of sky in England and Wales series St Michael’s Mount, Cornwall’, p.96 under ‘England and Wales Series’, as ‘?Study for downbrushing of sky in St Michael’s Mount, Cornwall’. c.1836, p.101 under ‘St Michael’s Mount’, as ‘?Study for downbrushing of sky in St Michael’s Mount, Cornwall’. c.1836, p.102 under ‘Sky Sketches’, p.104 Appendix II, as ‘Study: St Michael’s Mount’).