Guizot 1854, pp. 61, 64 cites A Discourse betwixt Lieut.-Colonel John Lilburne, close prisoner in the Tower of London, and Mr. Hugh Peters, upon 25 May 1649, p. 8.
Guizot 1854, 64An Outcry of the Young Men and Apprentices of London, 22 August 1649 p. 4.