Hawthorn Leslie and Company
In 1937, the company merged with the locomotive interests of Hawthorn Leslie and Company to form Robert Stephenson and Hawthorns Limited. The company's shipbuilding activities continuing separately. Main line locomotives continued to be built at Darlington, while industrial engines were built at Hawthorne Leslie's works at Forth Bank, Newcastle. in 1938 the goodwill of the Kitson and Manning Wardle companies was bought.