In 1795 and 1796, George Washington sat for Gilbert Stuart. Whiles scholars disagree about the final product created from these sittings, the resulting type of portrait is now commonly known as the "Vaughan", as one of the surviving examples resided in the collection of London merchant Samuel Vaughan.
Speaking on Stuart's ability to capture Washington's likeness, author John Neal wrote in his book Randolph in 1823:
"If Washington should appear on earth, just as he sat to Stuart, I am sure that [he] would be treated as an impostor, when compared with Stuart's likeness of him, unless he produced his credentials"
Howard, Hugh. The Painter's Chair: George Washington and the Making of American Art. New York: Bloomsbury Press, 2009.