The sitters are the four sons of the hide and leather merchant Shepherd Knapp (1795–1875) and his wife, Catherine Louisa Kumbel (1793–1872). They are, from left to right, Gideon Lee (1821–1875), Shepherd Fordyce (1832–1886), William Kumbel (1827–1877), and Peter Kumbel (1825–1871). Shepherd Fordyce ...
The Metropolitan Museum of Art (New York, United States Of America)