The opening of the New Morden Tube. Lieutenant Colonel J.T.C. Moore-Bhabazon, M.C., M.P., Who piloted the first train. Morden station is a London Underground station in Morden in the London Borough of Merton. The station is the southern terminus for the Northern Line, the most southerly station on the Underground and in Travelcard Zone 4. The next station north is South Wimbledon. The station is located on London Road (A24). Morden station first came into use on 13 September 1926 with the opening of the new extension of the City & South London Railway from Clapham Common.