The early history of Marylebone is tied into the Great Central Railway (GCR)'s Great Central Main Line (GCML) extension into London. When Sir Edward Watkin became chairman of the Manchester, Sheffield and Lincolnshire Railway (MS&LR) in 1864, the line was not particularly lucrative as it had no direct connection to London. Watkin was unhappy about transferring traffic to the Great Northern Railway, and when he became chairman of the Metropolitan Railway in 1872, he decided to build a dedicated line between the MS&LR and Central London.