Cheney, Christopher R. A Handbook of Dates for Students of British History. Michael Jones, rev. Royal Historical Society Guides and Handbooks 4. Cambridge: Cambridge UP, 2000.
Ekwall, Eilert. The Concise Oxford Dictionary of English Place-Names. Oxford: Clarendon P, 1960.
Fleming, John, Hugh Honour and Nikolaus Pevsner. Penguin Dictionary of Architecture and Landscape Architecture. Originally pub as The Penguin Dictionary of Architecture, 1966. London: Penguin Books, 1999.
Gazetteer of Great Britain. 1987. Southampton, London: Ordnance Survey & Macmillan Reference, 1999.
Withycombe, E.G. The Oxford Dictionary of English Christian Names. Oxford: Clarendon P, 1979.
Lancashire
Ekwall, Eilert. The Place-Names of Lancashire. Publications of the University of Manchester English, ser 11; Chetham Society, ns 81. Manchester: Manchester UP, 1922.
England
Iter: Gateway to the Middle Ages and Renaissance. 09/24/2007 (http://www.itergateway.org/)
Wales
Richards, Melville. Welsh Administrative and Territorial Units, Medieval and Modern. Cardiff: U of Wales P, 1969.