Catalogues Raisonnés

• MacDonald, Margaret F., James McNeill Whistler. Drawings, Pastels and Watercolours. A Catalogue Raisonné, New Haven and London, 1995 (cat. no. 265) as 'Heads of two men'.

Catalogues 1906-Present

• Curry, David Park, James McNeill Whistler at the Freer Gallery of Art, New York and London, 1984, p. 212, pl. 153.

Websites

• Freer Gallery of Art website at https://asia.si.edu/object/F1898.170, as 'Heads of two men'.