However, in late October Galloway confirmed that his party would not be standing in the constituency.
For the first time, two major candidates from the presidential election are standing in the same constituency for the legislative election.
Henry was selected to stand in the constituency at the 1906 general election.
West had previously stood for the Referendum Party in the same constituency in 1997.
He also stood unsuccessfully at the 1938, 1943 and 1944 general elections in the same constituency.
At the 1931 general election he stood in the Harborough constituency in Leicestershire.
Challen unsuccessfully stood for parliament at the 1992 general election in the constituency of Beverley.
He stood in the constituency of Bristol West.
The following year, he stood in the equivalent constituency at the Assembly election, and received 4.7% of the vote.
On 3 August 1920 Steyn again stood against him in the same constituency.