from The Magazine ANTIQUES, November/December 2011| Fig. 1. The Shepherd Boy (also known as Landscape with Shepherd) by Robert S. Duncanson (1821-1872), 1852. Signed and dated “R.S. Duncanson/1852” at lower left. Oil on canvas, 32 ½ by 48 ¼ inches. Metropolitan Museum of Art, gift of Hanson K. Corning by exchange. Fig. 3. The Rainbow by Duncanson, 1859. Signed …