George C. Williamson. John Russell, R.A. London, 1894, p. 165, as Mrs. Shurlock, Robert Shurlock's mother, with a snuffbox, 1801; the pastel in the collection of her grandson, Mainwaring Shurlock, Chertsey.
Katharine Baetjer. British Paintings in The Metropolitan Museum of Art, 1575–1875. New York, 2009, pp. 150–51, no. 70, ill. (color).