Knox, K. M. (1972). The Sharples: their portraits of George Washington and his contemporaries: A diary and an account of the life and work of James Sharples and his family in England and America. New York: Kennedy Graphics.

Knox, Katharine McCook. The Sharples: Their Portraits of George Washington and His Contemporaries: A Diary and an Account of the Life and Work of James Sharples and His Family in England and America. New York: Kennedy Graphics, 1972.

Knox, Katharine McCook. The Sharples: Their Portraits of George Washington and His Contemporaries: A Diary and an Account of the Life and Work of James Sharples and His Family in England and America. New York: Kennedy Graphics, 1972.