Book: Pugh, P. D. Gordon. 1987 Staffordshire Portrait Figures of the Victorian Era.
• Two models and Rennaisance possible design source: pp. E419-421, pls. 94 & 97 (flatbacks); pl. 96, similar composition but nude marble Hercules by Baccio Bandinelli (1493-1560), Florence. (Still says flatbacks are Samson.)Book: Harding, Adrian & Harding, Nicholas. 1998 Victorian Staffordshire Figures 1835-1875. 2.
• Four other models in different sizes: p. 41, fig. 1768.Book: Oliver, Anthony. 1981 Staffordshire pottery : the tribal art of England.
• Different flatback model in same pose: p. 67, no. 87, indicating may represent a lion tamer, such as the American Isaac Van Amburgh.