B Barking Barnet Bromley C Coulsdon Croydon D Dagenham E Edgware Enfield G Greenford H Harrow Hayes Hounslow I Ilford K Kingston upon Thames L London M Mitcham Morden P Pinner R Rainham Romford Ruislip S Southall Surbiton Sutton T Teddington Thornton Heath Twickenham W Wealdstone Welling West Wickham Whitton