| DATABASE | Alternative | FIRST | WHEEL | B.R. | YEAR | TOTAL | No. | GREAT WESTERN | ADDITIONAL NOTES | ANY |
| CLASS | CLASS | B.R. | ARR. | POWER | FIRST | No. | on | STEAM LOCOMOTIVES | PRES | |
| CODE | NAME | No. | CLASS | BUILT | BUILT | B.R. | CLICK BELOW TO | |||
| 1948 | SEE AN EXAMPLE | |||||||||
| GWR/County | class1000 | 1000 | 4-6-0 | 6MT | 1945 | 30 | 30 | Hawksworth | ||
| All locos named | ||||||||||
| GWR/1101 | 1101 | 0-4-0T | 3F | 1926 | 6 | 6 | Collett | |||
| GWR/1361 | 1361 | 0-6-0T | 0F | 1910 | 5 | 5 | Churchward | YES 1 | ||
| GWR/1366 | 1366 | 0-6-0T | 1F | 1934 | 6 | 6 | Collett, Saddle Tank | YES 1 | ||
| GWR/1400 | 1400 | 0-4-2T | 1P | 1932 | 75 | 75 | Collett, Pannier Tank | YES 4 | ||
| Push & Pull fitted | ||||||||||
| GWR/1500 | 1500 | 0-6-0T | 4F | 1949 | 10 | 10 | Hawksworth | YES 1 | ||
| Pannier Tank | ||||||||||
| GWR/1501 | 1531 | 0-6-0T | 1879 | 101 | 4 | Dean & Armstrong | ||||
| Pannier Tank | ||||||||||
| GWR/1600 | 1600 | 0-6-0T | 2F | 1949 | 70 | 70 | Hawksworth | YES 1 | ||
| Pannier Tank | ||||||||||
| GWR/1701 | 1705 | 0-6-0T | 1891 | 120 | 23 | Dean (Swindon) | ||||
| Pannier Tank | ||||||||||
| GWR/1813 | 1835 | 0-6-0T | 1883 | 40 | 1 | Dean (Swindon) | ||||
| Pannier Tank | ||||||||||
| GWR/1901 | 992 | 0-6-0T | 1881 | 170 | 43 | Dean & Armstrong | ||||
| Pannier Tank | ||||||||||
| GWR/2021 | 2021 | 0-6-0T | 2F | 1897 | 140 | 120 | Dean(Wolverhampton) | |||
| Pannier Tank | ||||||||||
| GWR/2181 | 2181 | 0-6-0T | 2F | 1897 | 10 | 10 | Dean(Wolverhampton) | |||
| reb. Collett 1939 | ||||||||||
| Pannier Tank | ||||||||||
| GWR/2251 | 2200 | 0-6-0 | 3MT | 1930 | 120 | 120 | Collett | YES 1 | ||
| Built until 1948 | ||||||||||
| GWR/2301 | 2322 | 0-6-0 | 2MT | 1883 | 260 | 53 | Dean Some lost | YES 1 | ||
| abroad in WWI & WWII | ||||||||||
| GWR/2600 | 2620 | 2-6-0 | 1900 | 81 | 4 | Dean | ||||
| GWR/2700 | 2702 | 0-6-0T | 1896 | 80 | 40 | Dean | ||||
| Pannier Tank | ||||||||||
| GWR/2800 | 2800 | 2-8-0 | 8F | 1903 | 167 | 167 | Churchward | YES 16 | ||
| GWR/Saint | class2900 | 2902 | 4-6-0 | 4P | 1902 | 77 | 41 | Churchward | ||
| All locos named | ||||||||||
| ROD/GWR | 3008 | 2-8-0 | 7F | 100 | 32 | Bought from Govt.1919 | ||||
| GWR/3100 | 3100 | 2-6-2T | 4MT | 1938 | 5 | 5 | Collett, rebuilt from | |||
| Churchward cl.3150 | ||||||||||
| GWR/3150 | 3150 | 2-6-2T | 4MT | 1907 | 41 | 30 | Churchward | |||
| GWR/Duke | class3252 | 9054 | 4-4-0 | 2P | 1895 | 60 | 11 | Dean 20 reb. as Bulldog | ||
| 29 reb. as '9000' | ||||||||||
| GWR/Bulldog | class3300 | 3325 | 4-4-0 | 1898 | 156 | 34 | Dean | |||
| Some locos named | ||||||||||
| GWR/517 | 3574 | 0-4-2T | 1868 | 156 | 3 | Armstrong | ||||
| GWR/3500 | 3561 | 2-4-0T | 1899 | 140 | 7 | Dean | ||||
| GWR/Star | class4000 | 4003 | 4-6-0 | 5P | 1906 | 73 | 46 | Churchward | YES 1 | |
| All originally named | ||||||||||
| 6 names removed in WWII | ||||||||||
| GWR/Castle | class4073 | 100 | 4-6-0 | 7P | 1923 | 171 | 171 | Collett,built to 1950 | YES 8 | |
| All locos named | ||||||||||
| 15 reb. from GWR/Star | ||||||||||
| 1 reb. from 4-6-2 | ||||||||||
| GWR/4200 | 4200 | 2-8-0T | 7F | 1910 | 205 | 151 | Churchward | YES 5 | ||
| 54 reb.to GWR/7200 | ||||||||||
| GWR/4300 | 4303 | 2-6-0 | 4MT | 1911 | 342 | 238 | Churchward | YES 2 | ||
| 80 reb. to GWR/Grange | ||||||||||
| 20 reb. to GWR/Manor | ||||||||||
| GWR/4400 | 4400 | 2-6-2T | 3MT | 1904 | 11 | 11 | Churchward | |||
| GWR/4500 | 4500 | 2-6-2T | 4MT | 1906 | 175 | 175 | Churchward | YES 14 | ||
| GWR/4700 | 4700 | 2-8-0 | 7F | 1919 | 9 | 9 | Churchward | |||
| GWR/Hall | class4900 | 3900 | 4-6-0 | 5MT | 1928 | 259 | 259 | Collett | YES 11 | |
| All locos named | ||||||||||
| 4900 reb. from Saint | ||||||||||
| GWR/5100 | 5111 | 2-6-2T | 4MT | 1903 | 40 | 24 | Churchward | |||
| 10 reb. to GWR/8100 | ||||||||||
| GWR/5101 | 4100 | 2-6-2T | 4MT | 1929 | 140 | 140 | Collett,built to 1950 | YES 10 | ||
| GWR/5400 | 5400 | 0-6-0T | 1P | 1931 | 25 | 25 | Collett, Push & Pull | |||
| Pannier Tank | ||||||||||
| GWR/5600 | 5600 | 0-6-2T | 5MT | 1924 | 200 | 200 | Collett | YES 9 | ||
| GWR/5700 | 3600 | 0-6-0T | 3F | 1929 | 863 | 863 | 1975AUG25GTVS013cs | Collett | YES 16 | |
| Pannier Tank | ||||||||||
| GWR/5800 | 5800 | 0-4-2T | 1P | 1932 | 20 | 20 | Collet, as GWR/1400 | |||
| but NOT Push/Pull | ||||||||||
| GWR/King | class6000 | 6000 | 4-6-0 | 8P | 1927 | 30 | 30 | Collett | YES 3 | |
| All locos named | ||||||||||
| GWR/6100 | 6100 | 2-6-2T | 4MT | 1931 | 70 | 70 | Collett | YES 1 | ||
| GWR/6400 | 6400 | 0-6-0T | 2P | 1931 | 40 | 40 | Collett, Push & Pull | YES 3 | ||
| Pannier Tank | ||||||||||
| GWR/Grange | class6800 | 6800 | 4-6-0 | 5MT | 1936 | 80 | 80 | Collett | ||
| All reb. from GWR/4300 | ||||||||||
| All locos named | ||||||||||
| GWR/ModiHall | class6959 | 6959 | 4-6-0 | 5MT | 1944 | 71 | 71 | Hawksworth | YES 7 | |
| Built until 1949 | ||||||||||
| All locos named | ||||||||||
| GWR/7200 | 7200 | 2-8-2T | 8F | 1934 | 54 | 54 | Collett reb. from 4200 | YES 3 | ||
| GWR/7400 | 7400 | 0-6-0T | 2F | 1936 | 50 | 50 | Collett | |||
| Pannier Tank | ||||||||||
| GWR/Manor | class7800 | 7800 | 4-6-0 | 5MT | 1938 | 30 | 30 | 1975AUG26GTVS014cs | Collett | YES 9 |
| 20 reb. from GWR/4300 | ||||||||||
| All locos named | ||||||||||
| GWR/8100 | 8100 | 2-6-2T | 4MT | 1938 | 10 | 10 | Collett rebuild of | |||
| Churchward class 5101 | ||||||||||
| GWR/9000 | 9000 | 4-4-0 | 2P | 1936 | 29 | 27 | Collett, new locos | YES 1 | ||
| from Dean engines | ||||||||||
| GWR/9400 | 9400 | 0-6-0T | 4F | 1947 | 210 | 210 | Hawksworth | YES 2 | ||
| Built until 1956 | ||||||||||