 The first section opened on 1 May 1850, and the whole on 20 May 1851.The Buckinghamshire Railway intended to extend the line south to the station at Aylesbury but the extension was not built.On 6 August 1860 the Aylesbury and Buckingham Railway, with the 3rd Duke (then still Marquess of Chandos) as chairman and Sir Harry Verney as deputy chairman, was incorporated by Act of Parliament to connect the Buckinghamshire Railway (now operated by the LNWR) to Aylesbury.