Book: Cushion, J. P. & Honey, W. B. 1980 Handbook of Pottery and Porcelain Marks.
• Mark information on p. 139.Book: Cooper, Wendy A. 2002 An American Vision: Henry Francis du Pont's Winterthur Museum.
• Discussion of Mrs. Perez Morton and portrait (1963.0077): p. 162, fig. 7.