Susan P. Casteras, The substance or the shadow : images of Victorian womanhood, , Yale Center for British Art, New Haven, 1982, pp. 87-8, no. 59, fig. 22, N7630 C27 + (YCBA)Susan Fagence Cooper, The model wife, the passionate lives of Effie Gray, Ruskin and Millais , Duckworth Overlook, London, 2010, pp. 96-97, fig. 13, PR5263 C67 2010 (YCBA)