In 1877 he succeeded Alfred Mellor Watkin as locomotive superintendent of the SER .
Mansell was carriage superintendent for the South Eastern Railway at Ashford by 1851 , and later works manager for the SER .
In 1877 Mansell succeeded Alfred Mellor Watkin as locomotive superintendent of the SER .
Mansell was carriage superintendent for the South Eastern Railway at Ashford by 1851 , and later works manager for the SER .