New York Times, March 21, 1905, SM3, illustrated. J. Walker McSpadden, Famous Paintings of America, New York, 1907, illustrated opposite p. 336. Wilbur Peat, "Checklist of Known Works by William Merritt Chase," Chase Centennial Exhibition, Indianapolis, Indiana, John Herron Art Museum, 1949 (as Content Johnson). Winifred Shilds, "A Portrait by William Merritt Chase is Willed to the Nelson Gallery," Kansas City Star, January 19, 1951, p. 23. Ross E. Taggert and George L. McKenna, eds., Handbook of the Collections in the William Rockhill Nelson Gallery of Art and Mary Atkins Museum of Fine Arts, Kansas City, Missouri, 1973, vol. I, p. 251. Keith L. Bryant, Jr., William Merritt Chase: A Genteel Bohemian, New York, 1991, p. 297, f.n. 3 (incorrectly implies that this was a demonstration piece by Chase rather than a commissioned portrait). Ronald G. Pisano, William Merritt Chase, Portraits in Oil, New Haven, Connecticut, 2006, p. 176-177, illustrated in color