Keywords: KatherineWinthrop 19thc afterJohnSmibert MFABoston.jpeg Mrs Samuel Browne Jr Katharine Winthrop early 19th century Unidentified artist American early 19th century After John Smibert American born in Scotland 1688 “1751 127 x 101 6 cm 50 x 40 in Oil on canvas Museum of Fine Arts Boston century 19 creator John Smibert John Smibert PD-old-100 |