Christopher Lennox-Boyd; (C. G. Boerner Limited, New York); purchased 2002 by NGA.
- Smith, John Chaloner. British mezzotinto portraits, being a descriptive catalogue of these engravings from the introduction of the art to the early part of the present century. 4 vols. London: Henry Sotheran and Co., 1884.
- C. G. Boerner Ltd. Mezzotints from the Collection of Christopher Lennox Boyd. London, 2001: no. 72.