Terminology

GWR: Great Western Railway
LMS: London Midland & Scottish Railway
LNER: London & North Eastern Railway
SR: Southern Railway
NER: North Eastern Railway
GNR: Great Northern Railway
LNWR: London & North Western Railway
LB&SCR: London Brighton & South Coast Railway
OW&W: Oxford Worcester and Wolverhampton Railway
S&DJR: Somerset & Dorset Joint Railway
SE&CR: South Eastern & Chatham Railway
B&MR: Brecon & Merthyr Tydfil Junction Railway
BR: British Rail or British Railways
BRC&W
BRCW: Birmingham Railway Carriage & Wagon Company
SVR: Severn Valley Railway
PW: Permanent Way
S&T: Signals & Telegraph
MPD: Motive Power Depot
C&W: Carriage & Wagon
DMU: Diesel Multiple Unit
ETT: Electric Train Token
Bulleid: Oliver Vaughan Snell Bulleid, Chief Mechanical Engineer (CME) of the Southern Railway between 1937 and 1948
Hawksworth: Frederick Hawksworth, Chief Mechanical Engineer (CME) of the Great Western Railway between 1941 and 1948
Collett: Charles Benjamin Collett, Chief Mechanical Engineer (CME) of the Great Western Railway between 1922 and 1941
Churchward: George Jackson Churchward, Chief Mechanical Engineer (CME) of the Great Western Railway between 1902 and 1922
Stanier: William Stanier, Chief Mechanical Engineer of the London, Midland and Scottish Railway berween 1932 and 1944
0F
1F
2F
3F
4F
5F
6F
7F
8F
9F
0P
1P
2P
3P
4P
5P
6P
7P
8P
9P
0MT
1MT
2MT
3MT
4MT
5MT
6MT
7MT
8MT
9MT: The British Railways system of classifying locomotives by power using a number from 0, least powerful, to 9, most powerful, followed by either F for freight, P for Passenger or MT for Mixed Traffic.