[Gustav Friedrich] Waagen. Treasures of Art in Great Britain. London, 1854, vol. 3, p. 225, as a portrait of Rubens by Van Dyck, at Ham Court.
Handbook for Travellers in Worcestershire and Herefordshire. 4th ed. London, 1894, p. 61.
Ella S. Siple. "Recent Acquisitions by American Collectors." Burlington Magazine 51 (December 1927), p. 303, as by Van Dyck.
Wilhelm R. Valentiner. A Loan Exhibition of Fifty Paintings by Van Dyck. Exh. cat., Detroit Institute of Arts. Detroit, 1929, unpaginated, no. 5, ill., tentatively dates it 1617 based on Rubens's appearance, but notes, however, that the technique suggests Van Dyck's second Antwerp period.
Wilhelm R. Valentiner. "Die Van Dyck-Ausstellung in Detroit." Zeitschrift für bildende Kunst 63 (1929–30), pp. 106, 108, ill., dates it to the second Antwerp period and proposes that Van Dyck gave Rubens a more youthful appearance than he had at the time.
Gustav Glück. Van Dyck, des Meisters Gemälde. 2nd ed. [1st ed. 1909]. Stuttgart, 1931, p. 517, ill. p. XV, dates it shortly after Van Dyck's return from Italy, and calls the oil sketch in the Buccleuch collection a "lesser example".
Hans Gerhard Evers. Rubens und sein Werk: Neue Forschungen. Brussels, 1943, p. 332, as one of the versions relating to Pontius's engraving.
Erik Larsen. L'opera completa di Van Dyck. Milan, 1980, vol. 2, p. 89, no. 541, ill., as by Van Dyck.
Walter A. Liedtke. Flemish Paintings in The Metropolitan Museum of Art. New York, 1984, vol. 1, pp. 91–94; vol. 2, pl. 38, as a copy after Van Dyck.
Walter A. Liedtke. "Anthony van Dyck." Metropolitan Museum of Art Bulletin 42 (Winter 1984/85), pp. 35–36, fig. 35.
Erik Larsen. The Paintings of Anthony van Dyck. Freren, Germany, 1988, vol. 2, p. 247, no. 608, ill., as by Van Dyck.