Being descended from Robert E. Lee, he can actually trace his family back to President George Washington. Washington himself had no biological children, but his wife, Martha Custis, did, and he adopted them after the death of Martha's first husband. Her son, John Custis, had a son of his own, Washington Custis, whose daughter, Mary Custis, was Robert E. Lee's wife. Interestingly, Duvall played Lee in Gods and Generals (2003), opposite Jeff Daniels, who had played Washington in The Crossing (1990). Duvall starred in the adaptation of To Kill a Mockingbird (1962).
