Further Reading
[Book] Cooper, Wendy A. 2002 An American Vision: Henry Francis du Pont’s Winterthur Museum. pp. 158, 160, fig. 5.
[Article] Verplanck, Anne. 10//2006 “Acquiring and Researching Portraits” (A Winterthur Primer [column]). Antiques and Fine Art. 7 (No. 3 (Autumn/Winter 06)): 238-39. pp. 239, fig. 3.