House of Commons Information Office (September 2006), The Gunpowder Plot(PDF), parliament.uk at web.archive.org, archived from the original(PDF) on 15 February 2005, retrieved 15 February 2011
House of Commons Information Office (September 2006), The Gunpowder Plot(PDF), parliament.uk at web.archive.org, archived from the original(PDF) on 15 February 2005, retrieved 15 February 2011