List of constituents of the London and North Eastern Railway

The London and North Eastern Railway (LNER) was formed out of a number of constituent railway companies at the grouping in 1923.

Main companies

The main companies, showing their route mileage, were:
* Great Eastern Railway (GER) 1191.25 miles (1906 km)
* Great Central Railway (GCR) 852.5 miles (1364 km)
* Great Northern Railway (GNR) 1051.25 miles (1680 km)
* Great North of Scotland Railway (GNSR) 334.5 miles (535 km)
* Hull and Barnsley Railway 106.5 miles (170 km) (H&BR) (which had amalgamated with the NER on 1 April 1922)
* North British Railway 1378 miles (2205 km) (NBR)
* North Eastern Railway 1757.75 miles (2812 km) (NER)

ubsidiary companies

Independently operated lines

* Colne Valley and Halstead Railway 19 miles (30 km)
* East and West Yorkshire Union Railway 9.5 miles (15 km)
* Mid-Suffolk Light Railway 19.5 miles (31 km)

Leased or worked railways

Many of these "railways" existed only in name; there were included on the list at the time of the Railways Act in order to legally qualify each line's position
* Originally leased to or worked by the NER
** Brackenhill Light Railway (West Yorkshire)
** Fawcett Depot line (County Durham) 5.5 miles (9 km)
** Great North of England, Clarence and Hartlepool Junction line 6.5 miles (10 km)
* Originally leased to or worked by the GCR
** Humber Commercial Railway and Dock
** Mansfield Railway 10 miles (16 km)
** North Lindsey Light Railway 12 miles (19 km)
** Seaforth and Sefton Junction Railway
** Sheffield District Railway 4.5 miles (7 km)
* Originally leased to or worked by the GER
** London and Blackwall Railway 6 miles (10 km)
* Originally leased to or worked by the GNR
** East Lincolnshire Railway 47.5 miles (76 km)
** Horncastle Railway 7.5 miles (12 km)
** Nottingham and Grantham Railway and Canal 23 miles (37 km)
** Nottingham Suburban line 4 miles (6 km)
** Stamford and Essendine Railway 12.5 miles (20 km)
* Originally leased to or worked by the NBR
** Edinburgh and Bathgate Railway 10.25 miles (16 km)
** Forth and Clyde Junction Railway 30.5 miles (49 km)
** Gifford & Garvald Railway 9.25 miles (15 km)
** Glasgow and Milngavie Junction Railway 3.2 miles (5 km)
** Kilsyth & Bonnybridge Railway 8.5 miles (14 km) (worked jointly with CalR)
** Lauder Light Railway 10.25 miles (16 km)
** Newburgh & North Fife Railway 13.25 miles (21 km)
* Originally leased to or worked by H&BR
** South Yorkshire Junction Railway 11.5 miles (18 km)
* Originally leased to or worked by several constituent companies
** Nottingham Joint Station Committee
** West Riding and Grimsby Railway 32.5 miles (52 km)

Independently Operated Joint Companies

* East London Railway: jointly leased by the LNER, Southern Railway, Metropolitan Railway (MetR) and Metropolitan District Railway. Traffic operated by MetR (passenger); LNER (goods)
* Cheshire Lines Committee (CLC): Operated jointly by LNER/London, Midland and Scottish Railway (LMSR). LNER supplies locomotive power; CLC own rolling stock
* Manchester, South Junction and Altrincham Railway: trains worked by both LNER/LMSR

Joint railways

Now totally LNER

* Great Northern and Great Eastern Joint Railway 123 miles (197 km)
* Hull & Barnsley and Great Central Joint Railway 25.75 miles (41 km)

Joint with LMSR

* Axholme Joint Railway 27.75 miles (44 km)
* Cheshire Lines Committee (2/3 share) 142 miles (227 km)
* Caledonian and Dunbartonshire Junction Railway (including Loch Lomond steamers) 7 miles (11 km)
* Dundee and Arbroath Railway (including Carmyllie Light Railway) 23 miles (37 km)
* Great Central and Midland Joint Railway 40.25 miles (64 km)
* Great Central & North Staffordshire Joint Railway 11 miles (18 km)
* Great Northern & London and North Western Joint Railway 45 miles (72 km)
* Halifax & Ovenden Railway 2.5 miles (4 km)
* Methley Railway (2/3 share) 6 miles (10 km)
* Midland and Great Northern Joint Railway 183.25 Miles (298 km)
* Norfolk & Suffolk Joint Committee (GER, MidR & GNR) 22.25 miles (36 km)
* Oldham, Ashton and Guide Bridge Railway 6.25 miles (10 km)
* Otley & Ilkley Railway 6.25 miles (10 km)
* Perth General Station (2/3 share)
* Prince's Dock, Glasgow (1/3 share) 1.25 miles (2 km)
* South Yorkshire Joint Railway (3/5 share) 20.5 miles (33 km)
* Swinton and Knottingley Joint Railway 19.5 miles (31 km)
* Tottenham & Hampstead Junction Railway 4.75 miles (8 km)

Joint with GWR

* Great Western and Great Central Joint Railway 41 miles (66 km)