lower left in plate: Drawn by Mortimer; lower center in plate: London, Publish'd as the Act directs 19th July 1779 by R. Blyth; by later hand, lower right in graphite: Box 38 T
Donald Vogler, Portland, OR; gift to NGA, 2017.
- Sunderland, John. "John Hamilton Mortimer: His Life and Works," Walpole Society 52 (1988): no. 229