E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Flint Jack.
Edward Simpson, an occasional servant of Dr. Young, of Whitby. So called because he used to tramp the kingdom vending spurious fossils, flint arrow-heads, stone celts, and other imitation antiquities. Professor Tennant charged him with forging these wares, and in 1867 he was sent to prison for theft.
