Day, Summers and Company
Its engines were generally of the Stephenson "Planet" type. A further 2-2-0 was built in 1839 for the London and Greenwich Railway. This was modified soon after delivery by the addition of a trailing axle making it 2-2-2.
Two more locomotives were built for the London and Southampton Railway and two for Bourne, Bartley and Company. Of the latter, one was sold on to the North Union Railway and the other to the Bolton and Leigh Railway. Both were withdrawn before 1846.
Other new engines may have been built but the records are sparse. In 1847 the company's name changed to Summers, Day and Baldock at the Mill Place Ironworks, Foundry Lane, Millbrook. The company later moved to Northam and became Day, Summers and Company.
- Lowe, J.W., (1989) British Steam Locomotive Builders, Guild Publishing