The First Generation of Steam Locomotives
Pre Grouping in 1923 – Not into the big four
Railway Company – Post 1923 Grouping
GWR – Great Western Railway 
SR – Southern Railway
LMS – London Midland & Scottish
LNER – London North Eastern Railway
BR – British Railways locomotive designs post 1948
New Build
Industrial Locomotives
Narrow Gauge
Broad Gauge
Metropolitan Railway – Including GWR etc
National Railway Museum
History of Steam
Carnforth Motif Power Depot
