All the London railway stations :
Underground lines : National Rail South West
Accessibility friendly : Yes.
General description : Twickenham is fully accessible to wheelchair users. Access to platforms 4 and 5 (for trains to Reading, Wimbledon, Windsor, Richmond, Clapham and London Waterloo) is via a staff-operated stair lift. Please ask a member of staff for assistance. Access to platform 3 (for stopping services to London Waterloo and all Waterloo bound services on match days) is via the car park - please approach staff at the main entrance who will be happy to assist you. See wiki
More comment : National Rail Map & Guide