lower center in plate: The Rt. Honble. John Lord Sommers.; lower left in plate: J. Richardson pinx. 1713,; lower center in plate: I. Smith fec.; lower right in plate: Sold by J Smith at the Lyon & Crown in Russell Street Covent Garden
Christopher Lennox Boyd; (Nicholas Stogdon, Oxford); purchased 2001 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.