Article: Kelleway, Philip Arthur. 2009 Figures of the Enlightenment: Derby porcelain portrait statuettes and republican politics in the 1760s and 1770s. Derby Porcelain International Society. 6: 135-153.
• Figure probably from same mold, with different painted details as well as painted portrait: pp. 143-44, pls. 13-14, the painted portrait attributed to Robert Edge Pine, 1774. For James Caldwall 1775 engraving, see p. 147, pl. 16.Book: Bradshaw, Peter. 1990 Derby Porcelain Figures 1750- 1848.
• Similar figure: pp. 239- 241, fig. 193, no. 88, with incised "88" mark.Book: Bradshaw, Peter. 1981 18th Century English Porcelain Figures 1745-1795.
• Same subject and similar figure: p. 208Book: 1948 English Pottery and Porcelain Commemorative Catalogue of an Exhibition held at the Victoria and Albert Museum May 5th-June 29th, 1948.
• Similar figure, differently painted: p. 58 and pl. 68, no. 316Book: Beddoe, Stella. 2015 A Potted History: Henry Willett's Ceramic Chronicle of Britain.
• Range of British earthenware and Chinese export porcelain with portraits or references to John Wilkes (1725-97): p. 109, nos. 491-497. Useful historical notes.