The spies Harry Houghton and Ethel Gee were trailed by a Special Branch agent when they travelled on the 68 between Waterloo Road and Walworth Road.
London | University of London | University College London | London School of Economics | King's College London | Tower of London | City of London | London Underground | London Symphony Orchestra | London, Ontario | London Stock Exchange | London Borough of Hackney | Imperial College London | Jack London | Hyde Park, London | Great Fire of London | Chelsea, London | London Marathon | London and North Western Railway | 7 July 2005 London bombings | London Philharmonic Orchestra | London Palladium | Bishop of London | South London | London, Midland and Scottish Railway | Lord Mayor of London | East End of London | North London | London Heathrow Airport | Lloyd's of London |
On 15 May 1916, the 31 was extended to run daily from Swiss Cottage to Tulse Hill (Tulse Hill Tavern) via Adelaide Road, Camden Town, Eversholt Street, Russell Square, Southampton Row, Kingsway, Aldwych, Waterloo Bridge, Elephant & Castle, Camberwell Green, Denmark Hill and Herne Hill, replacing route 68, which was withdrawn on the same day.