In his unpublished list of the miniatures in the Fredrick collection, E. G. Paine (1960) attributes this miniature to Christian Friedrich Zincke (62.122.115
), about 1755. Subsequently Daphne Foskett has attributed it to Gervase Spencer (active by 1740–died 1763), and Richard Allen and Hermione Waterfield to William Prewett (active 1735–50). Of these suggestions the attribution to Gervase Spencer seems nearest the mark.
[2016; adapted from Reynolds and Baetjer 1996]