George Washington by Gilbert Stuart

George Washington (February 22, 1732 [O.S. February 11, 1731] – December 14, 1799) was the first President of the United States of America, serving from 1789 to 1797, and the dominant military and political leader of the United States from 1775 to 1799.

The thumbnail is a detail from the 'Lansdowne Portrait' of Washington, painted from life by Gilbert Stuart in 1796:
http://www.npg.si.edu/collect/lansdowne2.htm