| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
| 246 (62712) | D49 | 4-4-0 | 4'-8½" | LNER | Bo'ness & Kinneil Railway, Bo'ness, SCT | <div style="color: #28A745;">operational</div> | LNER Darlington Works, 1928 | Named Morayshire. |
| 49 | F | 4-4-0 | 4'-8½" | Great North of Scotland Railway | Bo'ness & Kinneil Railway, Bo'ness, SCT | <div style="color: #007BFF;">display</div> | North British Locomotive Co. #22563, 10/1920 | Named Gordon Highlander. |
| 30120 (120) | T9 | 4-4-0 | 4'-8½" | LSWR | Flour Mill Ltd, Bream, ENG | <div style="color: #FFC107;">restoration</div> | LSWR Nine Elms Works #572, 1899 | Moved to the Bodmin & Wenford Railway, Bodmin in 2008. Restored to operation in 2010. Moved to the Swanage Railway in 2017. Boiler and tender moved to the Flower Mill, Bream in 2024. The chassis is being overhauled at the Swanage Railway's Herston Works. |
| 506 (62660) | 11F (D11) | 4-4-0 | 4'-8½" | Great Central (BR) | Barrow Hill Roundhouse Railway Centre, Chesterfield, ENG | <div style="color: #007BFF;">display</div> | GCR Gorton Works, 12/1919 | Named Butler Henderson. Owned by the National Railway Museum York. Restored to operation in March 1982. Retired from excursion service in 1992. |
| 256 | K | 4-4-0 | 4'-8½" | North British Railway | Riverside Museum, Glasgow, SCT | <div style="color: #007BFF;">display</div> | Cowlairs, 09/1913 | |
| | 4-4-0T | 600mm | Tongaat Sugar, Natal | Woody Bay Station, Lynton, ENG | <div style="color: #28A745;">operational</div> | W. G. Bagnall #2819, 1946 | Previously named Charles Wytock. Now named Sir George Newnes. In service at the Lynton & Barnstaple Railway. |
| 926 (30926) | V | 4-4-0 | 4'-8½" | Southern (BR) | North Yorkshire Moors Railway, Pickering, ENG | <div style="color: #28A745;">operational</div> | SR Eastleigh Works, 05/1934 | Named Repton. Restored to operation in 1967. From Steamtown USA. Taken out of service in Jul 2010. Taken out of service again in Nov 2023. Returned to operation on Sep 14, 2024. |
| 44 | | 4-4-0 | 15" | Lancaster & Chester Railway | Rhyl Miniature Railway, Rhyl, WAL | <div style="color: #28A745;">operational</div> | Cagney, 1910 | |
| 563 (E563) | T3 | 4-4-0 | 4'-8½" | LSWR (Southern) | Swanage Railway, Swanage, ENG | <div style="color: #28A745;">operational</div> | LSWR Nine Elms Works, 1893 | Previously placed on display at the National Railway Museum York from 1975 to 2017. Restored to operation in July 2023. Debuted in excursion service in October 2023. |
| 3717 (3440) | 3700 | 4-4-0 | 4'-8½" | GWR | Museum of the Great Western Railway, Swindon, ENG | <div style="color: #007BFF;">display</div> | GWR Swindon Works # 2000, 04/1903 | Named City of Truro. Owned by the National Railway Museum York. Became the first steam locomotive in the UK claimed to have reached 100 mph (102 mph, 1904). Retired from excursion service in 2006 due to firebox damage. |
| | 4-4-0T | 24" | Tongaat Sugar, Natal | Statfold Barn Railway, Tamworth, ENG | <div style="color: #ff8800;">private operational</div> | W. G. Bagnall #2820, 1945 | Named Isibutu. |
| 74 | U2 | 4-4-0 | 5'-3" | Northern Counties Committee | Ulster Transport Museum, Ulster, NRL | <div style="color: #007BFF;">display</div> | North British Locomotive Co. #23096, 1924 | Named Dunluce Castle. |
| 2 | CLR 1-8 | 4-4-0T | 36" | Cavan & Leitrim | Ulster Transport Museum, Ulster, NRL | <div style="color: #007BFF;">display</div> | Robert Stephenson & Co. (Darlington Works) #2613, 1887 | Named Kathleen. |
| 131 | Q | 4-4-0 | 5'-3" | GNRI | Railway Preservation Society of Ireland, Whitehead, NRL | <div style="color: #28A745;">operational</div> | Neilson Reid & Co. #5727, 02/1901 | Named Uranus. |
| 171 | S | 4-4-0 | 5'-3" | GNRI | Railway Preservation Society of Ireland, Whitehead, NRL | <div style="color: #28A745;">operational</div> | Beyer, Peacock & Co. #5629, 1913 | Named Slieve Gullion. Moved to Dublin for mainline trials. |
| 85 | V | 4-4-0 | 5'-3" | GNRI | Railway Preservation Society of Ireland, Whitehead, NRL | <div style="color: #FFC107;">out of service</div> | Beyer, Peacock & Co. #6733, 1932 | Named Merlin. Moved to Dublin. |
| 30925 (925) | V | 4-4-0 | 4'-8½" | BR (Southern) | National Railway Museum, York, ENG | <div style="color: #007BFF;">display</div> | SR Eastleigh Works, 04/1934 | Named Cheltenham. Restored to operation by the Mid Hants Railway, Alresford, ENG in 2012. Taken out of service in 2017 due to a cracked frame, but eventually returned to operation later that year. Retired from excursion service in the summer of 2022. |
| 737 | D | 4-4-0 | 4'-8½" | South Eastern & Chatham | National Railway Museum, York, ENG | <div style="color: #007BFF;">display</div> | South Eastern & Chatham Railway Ashford Works, 1901 | |