(American, 1783-1872)Two Sisters, unsigned, Philadelphia colourman stamp verso, oil on canvas, 24 x 20 in.; reproduction carved gilt wood and composition frame, 30-1/4 x 26-1/4 in. - Note: A number of references appear in Sully's Register of Portraits to paintings of sisters, many of which he painted on more than one occasion, and many of which have known locations.  It is often difficult to attribute a sitter's name(s) for many reasons, especially when dimensions were not noted by the author.     linen lined, crackle, scattered small areas of retouch; frame with abrasions, some small chips at corners and edges