The railway that absorbed the North Lindsey Light railway  opened its London Extension in what year?
North Lindsey Light Railway: The North Lindsey Light Railway was a light railway in North Lincolnshire. Great Central Railway: The Great Central Railway (GCR) in England came into being when the Manchester, Sheffield and Lincolnshire Railway changed its name in 1897 in anticipation of the opening in 1899 of its London Extension (see Great Central Main Line).
i don't know