He was a son of the very prominent Tudor printer John Judson, Stationer in London from c. 1542 until his death in 1589.
[2] In 1569 John Judson operated from the Sign of the Hedghogg in Paul's Churchyard.
[3] In his will of 4 May 1588 John left his stock of money held by the Stationers for partnerships to his widow Alice for life, and then to descend to his son Thomas (notwithstanding that Thomas was the second-named of his two sons, and both were to be his Overseers).
[4] On 6 May 1592 a dinner for Mistress Judson was held at Stationers' Hall, for which Thomas contributed forty shillings.
[6] In early 1600 he sold his business to the printer John Harrison III.