1909
A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.II, p.663, CCXV 11a, as ‘Walls of a town, gateway, and distant view of “Sea.” “Medun.”’.
1975
Gerald Wilkinson, Turner’s Colour Sketches 1820–34, London 1975, p.33, as both ‘Medun’ and a Boulogne subject, reproduced.
1981
Maurice Guillaud in Guillaud, Nicholas Alfrey, Andrew Wilton and others, Turner en France: aquarelles, peintures, dessins, gravures, carnets de croquis / Turner in France: Watercolours, Paintings, Drawings, Engravings, Sketchbooks, exhibition catalogue, Centre Culturel du Marais, Paris 1981, pp.[171], as ‘Boulogne (?)’, fig.298.
1997
Ian Warrell, Turner on the Loire, exhibition catalogue, Tate Gallery, London 1997, pp.17, 206 note 21, as Boulogne subject.