Attributed to John Singleton Copley (1738 - 1815)
PORTRAIT OF A GENTLEMAN
Sotheby's, New York, American Paintings, Drawings and Sculpture, March 17, 1994, sale 6538, lot 15;
Alan Miller, Quakertown, Pennsylvania.
George Parker, “Merchants and Planters: American Portraits of the Colonial Period and the Early Republic,” Wisconsin Academy Review: A Journal of Wisconsin Culture, vol. 43, no. 4, Fall 1997, p. 25, illustrated (as Joshua Winslow).