Alex Kidson, George Romney : a complete catalogue of his paintings, The Paul Mellon Centre for Studies in British Art, New Haven, 2015, pp. 462-63 (v.2), cat. no. 1029, pl. 1029, NJ18.R65 A12 +K54 2015 v.1-3 (YCBA)B. E. Maclean-Eltham, A Note on the Romney Collection at Yale University, Transactions of the Romney Society, vol. 1, 1996, p. 15, NJ18 R65 T7 1996 (YCBA)Parke-Bernet Galleries Inc.'s sale catalogue : Notable Dutch and Flemish Old Masters and British Portraits Belonging to the Estate of the Late Henry Blank : 16 November 1949, Parke-Bernet Galleries Inc., New York, November 16, 1949, p. 49, lot 58, X348 P2275 1092 (MSSA-YUL)Thomas Humphry Ward, Romney : A Biographical and Critical Essay with a Catalogue Raisonne´ of His Works, , , Thos. Agnew & Sons, London, 1904, p. 123 (v.2), NJ18 R65 A12 +W37 v.1-2 (YCBA)