The Copley Family. Dated: 1776/1777. Dimensions: overall: 184.1 x 229.2 cm (72 1/2 x 90 1/4 in.) framed: 226.1 x 271.8 x 13.9 cm (89 x 107 x 5 1/2 in.). Medium: oil on canvas. Museum: National Gallery of Art, Washington DC. Author: John Singleton Cop