10 Downing Street - Duke of Portland - Biography of William Bentinck, Duke of Portland, Prime Minister 1783; 1807-9. - http://www.pm.gov.uk/output/Page159.asp
The Fox-North Coalition - Article discussing Portland's first ministry. Includes links to related articles . - http://www.dialspace.dial.pipex.com/town/terrace/adw03/c-eight/ministry/foxnorth.htm