An Irish barrister and M.P., John Dunn traveled to the United States around 1797. Stuart used this study, which George C. Mason (loc. cit.) noted in 1879 Stuart "would never part with", for two finished portraits now in the National Gallery of Art, Washington D.C. and the Museum of Fine Arts, Boston. Miss Jane Stuart's original bill of sale to Mr. Sears will be included with this lot.