1903 Dulwich by-election

The 1903 Dulwich by-election was a by-election held on 15 December 1903 for the British House of Commons constituency of Dulwich in South London.

Vacancy
The by-election was triggered by the death of the serving Conservative Party Member of Parliament (MP), Sir John Blundell Maple.

Candidates

 * The Unionist (Conservative) candidate was Dr Frederick Rutherfoord Harris, who had previously been elected MP for Monmouth Boroughs in the 1900 general election but was disqualified the next year as a result of an election petition alleging irregularities.
 * The Liberal Party candidate was Charles Masterman.

Campaign
The main issue in the by-election, as with the Lewisham by-election held on the same day, was tariff reform. Harris was a supporter of Joseph Chamberlain's proposals for Imperial Preference and was supported by the Tariff Reform League. Masterman was a supporter of the Liberal party policy of Free trade. Harris's involvement in the Jameson Raid affair was raised by his opponents.