
Quote from Gainborough's letter to Lord Dartmouth, 18 April 1771, after critic on the first portrait he made of Lady Dartmouth; as cited in Thomas Gainsborough, by William T, Whitley https://ia800204.us.archive.org/6/items/thomasgainsborou00whitrich/thomasgainsborou00whitrich.pdf; New York, Charles Scribner's Sons – London, Smith, Elder & Co, Sept. 1915, p. 74
1770 - 1788