出版
A.E. Gardner, American Sculpture: A Catalogue of the Collection of The Metropolitan Museum of Art, Greenwich, Connecticut, 1965, pp. 50-51
J.H. Dryfhout and B. Fox, Augustus Saint-Gaudens: The Portrait Reliefs, New York, 1969, nos. 39-41
J.H. Dryfhout, 'Robert Louis Stevenseon', Metamorphoses in Nineteenth Century Sculpture, Cambridge, Massachusetts, 1975, pp. 187-200, fig. 9
J.H. Dryfhout, The Work of Augustus Saint-Gaudens, Hanover, New Hampshire, 1982, pp. 173-176, figs. 133-134