Midland and Great Northern Joint Railway (UK) - MGNR 4-4-0 steam locomotive Nr. 10 and Pullman car by Historical Railway Images Via Flickr: The Midland and Great Northern Joint Railway, (M&GN) was a joint railway owned by the Midland Railway (MR) and the Great Northern Railway (GNR) in eastern England. The main line ran from Peterborough to Great Yarmouth via South Lynn and Melton Constable. Branches ran from Sutton Bridge to an end on junction with the Midland Railway branch from Saxby, at Little Bytham near Bourne, Lincolnshire; from Melton Constable to Cromer; and from Melton Constable to Norwich. There was also a short spur connecting South Lynn to King's Lynn and its docks.















