Mrs. Wyseman Clagett, N?e Lettice Mitchell; Later Mrs. Simon McQuesten, Joseph Blackburn, American, active ca. 1750-1780, Oil on canvas, ca. 1760, 36 1/16 x 27 3/4 in., 91.6 x 70.5 cm, 18th century, bare shoulder, bodice, bosom, breast, cleavage, cre