John Cam Hobhouse (1786-1869) stood as a radical candidate in the Westminster by-election following the suicide of the Whig Samuel Romilly, who had been returned alongside Francis Burdett in the 1818 election. On 3 March the Whig candidate, George Lamb, secured a victory over Hobhouse, with 4,465 votes to Hobhouse’s 3,861. Major Cartwright finished a very distant third with only 38 votes.

See DNB and Morning Chronicle, 4 March 1818.