Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 143,024 pages of information and 229,410 images on early companies, their products and the people who designed and built them.
A 4.5 mile extension was built to Bo'ness, which opened on 17 March 1851. The 26 June 1846 Act of Parliament authorising this extension, also allowed the railway to lease the harbour at Bo'ness but this lease was not followed through.
The Monkland Railways were absorbed by the Edinburgh and Glasgow Railway by an Act of Parliament, dated 5 July 1865, effective from 31 July 1865. A day later (on 1 August 1865) the Edinburgh and Glasgow Railway was absorbed into the North British Railway.