[2] A descendant, David Young, now works on the restoration of steam engines at Beamish.

[3] This included modern features, such as paired Salter spring balance safety valves.

1 was propelled by a dummy petrol engine in its tender, but Lyon was steamed and ran under its own power,[5] leading the cavalcade of fifty three locomotives.

[7] In 1974 was loaned to the new Beamish Museum where it was initially displayed in the Colliery and latterly at the Waggonway, together with working replicas of contemporary locomotives.

Both are probably derived from the name of Hetton Lyons Colliery, which closed in 1960 and is now the site of an industrial estate and a country park.

These were of 0-4-0 arrangement with two vertical cylinders, one above each axle, and the wheels coupled by drive chains.

[iv] The design is little changed from Stephenson locomotives of the 1820s (i.e. before Rocket) and this confused early researchers.

One distinctive difference from these locomotives was the enlarged smokebox with an easily opened door, providing more space for and easier cleaning of ashes.