Book: Smith, John Chaloner. 1884 British Mezzotinto Portraits; Being a Descriptive Catalogue of These Engravings from the Introduction of the Art to the early part of the present century. 3. 941-1428.
• See p. 1106, no.113.Book: Belknap, Waldron Phoenix. 1959 American Colonial Painting: Materials for a History.
• See p.296, no.19.Book: Lafler, Joanne. 1989 The Celebrated Mrs. Oldfield: The Life and Art of an Augustan Actress.
Article: Fleischer, Roland E. 1987 "Gustavus Hesselius and Penn Family Portraits: A Conflict between Visual and Documentary Evidence". American Art Journal. 19 (3): 4-18.
• See fig. no. 12, p. 16.