Waagen 1854, vol. 3, p. 431, Letter XXXIII, Narford; WGC, pl. 28a (probably version 3); European Paintings: An Illustrated Catalogue, National Gallery of Art, Washington, 1985, p. 438, repr.; J. Hayes, British Paintings of the Sixteenth through Nineteenth Centuries: The Collections of the National Gallery of Art Systematic Catalogue Washington, D.C., 1992, pp. 336-39, repr.; National Gallery of Art, Washington, 1992, p. 145, repr.; D. Stacey, 'Thomas Smith of Derby (1720-67)' British Art Journal, vol. 17, no. 2, Autumn 2016, pp. 10-11.