Editors. "Joseph Chamberlain becomes Commons leader of Liberal Unionists". The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=19066, accessed 22 December 2013.]
Joseph Chamberlain becomes leader of the Liberal Unionists in the Commons, after their previous leader Spencer Cavendish, Lord Hartington, succeeds to the dukedom of Devonshire and moves to the House of Lords.