- Marshall, John
- Author of “Biographical Dictionary of Railway Engineers” 2nd Edition Pubished by Railway & Canal Historical Society, 2000, ISBN 0-9014641-22-9.
- McConnell, James Edward (1815—1883)
- Locomotive Superintendent
of LNWR Southern Division from 1847—1862. Oversaw the design of Bloomer and Patent locomotives.
- Moon, Sir Richard (1814—1899)
- The was elected to the LNWR Board in 1851 and within a year became most active in the company’s affairs. He was made Chairman in 1861 and for the next 30 years directed all his activities to the LNWR.
- Moorsom, Captain Constantine Richard (1792—1861)
- From 1833 became joint secretary of the Birmingham & Gloucester Railway
where his younger brother Captain W.S. Moorsom was Engineer. Elected to the Board in 1841 and within 2 week became chairman. Resigned December 1843 just before the BGR became part of the MR . He was also joint secretary of the LBR 1837-9. Later he became a director of the LNWR and chairman in October 1852
- Moorsom, Captain William Scarth (1804—1863)
- In 1836 was appointed to survey the Birmingham & Gloucester Railway
, which included the Lickey incline 2 miles at 1 in 37. Among his other railway work he was Engineer on the Cromford & High Peak Railway .
- Nock, Oswald Stevens (1905—1994)
- Professional signal engineer and prolific writer on locomotives and railways generally. Author of over 100 railway books. See also “Practice and Performance”

- Ramsbottom, John (1814—1897)
- Locomotive superintendent
on the Manchester & Birmingham (1842-46), of the NE division of the LNWR (1846-57) and of the LNWR (1857-71). Inventor of the Ramsbottom-type safety valve , and pioneer of water pick-up troughs .
- Riddles, Robert Arthur (1892—1983)
- Chief Mechanical Engineer
for British Railways (1948–1953). Originally trained at Crewe under the London North Western Railway , he then worked on the London Midland and Scottish Railway before being put in charge of locomotives at the Ministry of Supply during WW2.
- Saxby, John (1821—1913)
- Inventor of interlocking
points and signalling, patented 1856 and first used on the LBSCR . His company, Saxby and Farmer, provided many of the earliest signal boxes on the LNWR, some of which are still in use.
- Scott, Samuel Strong (1858—1934)
- Sammy Scott started work as a booking clerk at stations in the Stockport area, 1872. Later as a main-line Guard
on the LNWR circa 1920 he gathered information on early locomotives, becoming a leading authority on the subject.
- Stanier, Sir William (1876—1965)
- Chief Mechanical Engineer
at Crewe Works for London, Midland & Scottish Railway (1932–1944).
- Stephenson, George (1781—1848)
- British steam pioneer and mining engineer, designer of the miner’s safety lamp and mining engines. Later, the engineer of the Hetton Colliery, Stockton & Darlington
, Liverpool & Manchester , Leicester & Swannington , Birmingham & Derby , North Midland and Manchester & Leeds Railways between 1819 and 1840. Established an engineering works in Newcastle in 1823, Robert Stephenson & Co.
- Stephenson, Robert (1803—1859)
- Son of George, Railway engineer. Designed the “Rocket”, winner of the Rainhill
prize in 1829. Engineer of the London & Birmingham Railway , and designer of numerous bridges, including the Britannia bridge over the Menai Strait and the high-level bridge at Newcastle-upon-Tyne.
- Stevenson, Francis (1827—1902)
- Engineer on London & Birmingham
railway. 1843 became manager of engineering staff. 1886 appointed Chief Engineer of the LNWR. Stevenson was a lover of nature and of old buildings and always strove to blend his works into the landscape.
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