A. Graves and W.V. Cronin, A History of the Works of Sir Joshua Reynolds, London, 1899, II, p.939.
E.K. Waterhouse, 'Additions to the list of pre Italian portraits by Reynolds', Minneapolis Institute of Arts Bulletin, 1968, p.165.
1968, p.165 D. Mannings, Sir Joshua Reynolds, A Complete Catalogue of His Paintings, New Haven and London, 2000, I, p. 331, nos 1240 and 1241, II, figs 31 and 32.