Édouard Brandus. "La collection des tableaux anciens de M. Jules S. Bache, à New-York." La Renaissance 11 (May 1928), pp. 181, 184, ill. p. 197, as Queen Charlotte by Gainsborough.
Walter Heil. "The Jules Bache Collection." Art News 27 (April 27, 1929), p. 4.
A Catalogue of Paintings in the Collection of Jules S. Bache. New York, 1929, unpaginated, ill., as from the collections of the dukes of Waldeck-Pyrmont and Leopold Hirsch, and with the observation that a replica of this portrait is in the private audience chamber at Windsor.
August L. Mayer. "Die Sammlung Jules Bache in New-York." Pantheon 6 (December 1930), p. 542.
C. J. Bulliet. Art Masterpieces in a Century of Progress Fine Arts Exhibition at the Art Institute of Chicago. Chicago, 1933, vol. 1, unpaginated, no. 13, ill.
"Six Centuries of European Painting at Chicago." Connoisseur 91 (May 1933), pp. 346, 348, ill., as "slightly larger than the similar oval portrait at Windsor and the version at South Kensington".
A Century of Progress: Exhibition of Paintings and Sculpture Lent from American Collections. Exh. cat., Art Institute of Chicago. Chicago, 1933, p. 30, no. 193.
A Catalogue of Paintings in the Bache Collection. under revision. New York, 1937, unpaginated, no. 57, ill.
Harry B. Wehle. "The Bache Collection on Loan." Metropolitan Museum of Art Bulletin 1 (June 1943), p. 290.
A Catalogue of Paintings in the Bache Collection. rev. ed. New York, 1943, unpaginated, no. 56, ill.
An American Correspondent. "English Portraits in the Jules Bache Collection." Connoisseur 113 (March 1944), pp. 52–53, ill., describes it as a replica of the portrait at Windsor and probably of the same period.
E[llis]. K. Waterhouse. "Preliminary Check List of Portraits by Thomas Gainsborough." Walpole Society 33 (1953), p. 19, as an "original repetition" of the Windsor portrait of September 1782.
Ellis Waterhouse. Gainsborough. London, 1958, p. 59, no. 133.
Oliver Millar. The Later Georgian Pictures in the Collection of Her Majesty the Queen. London, 1969, vol. 1, p. 37, as a "very good autograph repetition" of the Windsor portrait.
John Hayes. Letter to Katharine Baetjer. August 7, 1990, affirms the attribution to Thomas Gainsborough.
John Ingamells. National Portrait Gallery: Mid-Georgian Portraits, 1760–1790. London, 2004, p. 106.
Katharine Baetjer. British Paintings in The Metropolitan Museum of Art, 1575–1875. New York, 2009, pp. 106–8, no. 47, ill. (color).