Nelson in Lancashire shares its name with the lesser known settlement of Nelson in Gwent
In the centre of the roundabout at Elephant & Castle stands a memorial to Michael Faraday, famous for his discoveries in electricity and magnetism. . He was born nearby. His statue stands outside the Institution of Engineering and Technology in Savoy Place and he is buried in Highgate Cemetery.
(The memorial at the Elephant houses an electrical substation for the Northern Line, which seems appropriate)