John Singleton Copley (1738 – 1815) was an American-born painter, active in both colonial America and England. He was probably born in Boston, Massachusetts, to Richard and Mary Singleton Copley, both Irish. He is famous for his portrait paintings of important figures in colonial New England, depicting in particular middle-class subjects. His paintings were innovative in their tendency to depict artifacts relating to these individuals' lives.
Source: Wikipedia, "John Singleton Copley", available under the CC-BY-SA License.