The Great Western Railway Leo Class 2-4-0 was a class of broad gauge steam locomotives for goods train work. This class was introduced into service between January 1841 and July 1842, and withdrawn between September 1864 and June 1874.
|GWR Leo class|
These locomotives were the first for the railway with coupled wheels as they were designed as goods locomotives, but they later found use on passenger trains too. All the class were altered to 2-4-0STs.
The locomotives were built by three different workshops, each with its own naming convention. The first three came from R and W Hawthorn and Company, who named them after strong animals. The next three were named after volcanoes by Fenton, Murray and Jackson, while the final twelve came from Rothwell and Company carrying the names of the twelve houses of the zodiac.
|Elephant||R. & W. Hawthorn & Co.||319||January 1841||December 1870|
|Buffalo||R. & W. Hawthorn & Co.||320||March 1841||April 1865|
|Dromedary||R. & W. Hawthorn & Co.||321||March 1841||December 1866|
|Hecla||Fenton, Murray and Jackson||35||April 1841||September 1864||[Note 1]|
|Stromboli||Fenton, Murray and Jackson||36||April 1841||July 1870|
|Etna||Fenton, Murray and Jackson||37||June 1841||December 1870|
|Aries||Rothwell and Company||66||June 1841||June 1871|
|Taurus||Rothwell and Company||67||July 1841||December 1870||[Note 2]|
|Gemini||Rothwell and Company||68||September 1841||March 1866|
|Cancer||Rothwell and Company||69||October 1841||June 1874|
|Leo||Rothwell and Company||70||October 1841||December 1870|
|Virgo||Rothwell and Company||71||December 1841||December 1870|
|Libra||Rothwell and Company||72||February 1842||June 1871|
|Scorpio||Rothwell and Company||73||February 1842||December 1872|
|Sagittarius||Rothwell and Company||74||April 1842||June 1871||[Note 3]|
|Capricornus||Rothwell and Company||75||April 1842||July 1870||[Note 4]|
|Aquarius||Rothwell and Company||76||June 1842||July 1870|
|Pisces||Rothwell and Company||77||July 1842||June 1874||[Note 5]|
- Hecla: On 24 December 1841 it was involved in a fatal accident in Sonning Cutting near Reading. It was hauling a so-called "baggage train" consisting of both passenger and goods trucks, when it ran into an earth slip in the cutting, killing eight passengers. At the coroner's inquest on the passengers killed the jury returned a verdict of accidental death in all cases and a deodand of one thousand pounds on the engine, tender and carriages. The deodand was later overturned.
- Taurus: worked the first South Devon Railway train from Newton to Torquay on 18 December 1848.
- Sagittarius: worked the first train to Warminster on 9 September 1851.
- Capricorn: Along with Pisces, worked the first train from Totnes to Laira, the temporary terminus of the South Devon Railway at Plymouth on 5 May 1848.
- Pisces:Along with Capricornus, worked the first train from Totnes to Laira, the temporary terminus of the South Devon Railway at Plymouth on 5 May 1848.