Citations: Gilbert, P. 2000: Butterfly Collectors and Painters. Four centuries of colour plates from The Library Collections of The Natural History Museum, London. Singapore, Beaumont Publishing Pte Ltd, X+166 S. S., B15: B 2547, pp. 94-95: Lep.-Tafel
Lamas, G. 1998: [Johnson, T.] The Lepidopterists' News. The Monthly Newsletter of the Lepidopterists' Society., Colorado Springs (3), B15: 11 158, pp. 55-56
Radclyffe, H. 1995: Theophilus Johnson: amateur naturalist, artist and publisher extraordinaire. Archives of Natural History, London 22 (2), S. 183-190, B15 10991