A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.I, p.551, as ‘Naples, from the sea. Half of this drawing (on p.6) forms one of the “Four Studies: Naples” in First Loan Collection, No.124’.
Cecilia Powell, ‘Turner on Classic Ground: His Visits to Central and Southern Italy and Related Paintings and Drawings’, unpublished Ph.D thesis, Courtauld Institute of Art, University of London 1984, p.193 notes 97 and 100.
Cecilia Powell, Turner in the South: Rome, Naples, Florence, New Haven and London 1987, p. note 76.
Ian Warrell, ‘R.N. Wornum and the First Three Loan Collections: A History of the Early Display of the Turner Bequest Outside London’, Turner Studies, Summer 1991, vol.11, no.1, p.42.