| NW643 | | initial entry of line base data derived from ordnance survey maps ca 1905 i/c/w production of base line diagrams | 24/07/2026 20:24 | | NW640 | | update of line base data derived from ordnance survey maps ca 1904 - 1907. & L&NWR 2 chain plans, i/c/w production of base line diagrams | 24/07/2026 01:22 |
| NW423 | | update of line base data derived from ordnance survey maps ca 1909 - 1924 i/c/w production of base line diagrams | 23/07/2026 23:16 |
| NW660 | | initial entry of line base data derived from ordnance survey maps ca 1909, & L&NWR 2 chain plans i/c/w production of base line diagrams | 23/07/2026 20:17 |
| NW662 | | update of line base data derived from ordnance survey maps ca 1905 i/c/w production of base line diagrams. | 23/07/2026 13:55 |
| NW645 | | initial entry of line base data derived from ordnance survey maps ca 1905 i/c/w production of base line diagrams | 22/07/2026 23:12 |
| NW530 | | update of line base data derived from ordnance survey maps ca 1908 - 1926 i/c/w production of base line diagrams. | 20/05/2026 16:27 |
| NW542 | | update of line base data derived from ordnance survey maps ca 1906 i/c/w production of base line diagrams. | 01/03/2026 15:05 |
| NW620 | | initial entry of most of remaining line base data derived from ordnance survey maps ca 1904 - 1916 i/c/w production of base line diagrams | 26/02/2026 00:08 |
| NW620 | | initial entry of part of line base data derived from ordnance survey maps ca 1904 - 1916 i/c/w production of base line diagrams | 13/01/2026 21:31 |
| NW897 | | update of line base data derived from ordnance survey maps ca 1907 - 1912 i/c/w production of base line diagrams. | 24/10/2025 15:54 |
| MR911 | | update of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams. | 03/10/2025 15:02 |
| LY222 | | update of line base data derived from ordnance survey maps ca 1909 i/c/w production of base line diagrams. | 29/09/2025 17:29 |
| LY215 | | Bridge numbers inserted from LMS Bridge Register | 29/09/2025 14:49 |
| LY200 | | update of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams. | 18/09/2025 20:24 |
| LY147 | | update of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams. | 21/08/2025 17:09 |
| LY140 | | update of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams. | 12/08/2025 16:09 |
| LY143 | | initial entry of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams | 12/08/2025 14:18 |
| LY146 | | initial entry of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams | 11/08/2025 12:12 |
| LY160 | | update of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams. | 09/08/2025 20:57 |
| NW680 | | initial entry of line base data derived from ordnance survey maps ca 1906 i/c/w production of base line diagrams | 08/06/2025 17:12 |
| NW684 | | initial entry of line base data derived from ordnance survey maps ca 1906 i/c/w production of base line diagrams | 07/06/2025 22:08 |
| NW697 | | initial entry of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams | 20/05/2025 21:54 |
| NW696 | | initial entry of line base data derived from ordnance survey maps ca 1906 i/c/w production of base line diagrams | 20/05/2025 21:45 |
| LY162 | | update of line base data derived from ordnance survey maps ca 1907 i/c/w production of base line diagrams. | 18/05/2025 15:45 |