Bury, Curtis and Kennedy

In 1842, Bury took Kennedy, Timothy Abraham Curtis and John Vernon as partners, and the company changed its name to Bury, Curtis and Kennedy.

Bury continued as Locomotive Superintendent of the London and Birmingham Railway but a few months after it had become part of the London and North Western Railway he resigned in March 1847. In February 1848 he was appointed Locomotive Superintendent of the Great Northern Railway, and in June 1849 became also its general manager.

Meanwhile, the firm of Bury, Curtis & Kennedy continued building locomotives, some of advanced design which had a great influence on subsequent practice, such as the 2-2-2s for the L&NWR which led directly to the Bloomers, as well as one-offs such as the gigantic 6-2-0 Crampton Liverpool for the L&NWR, the most powerful locomotive in the world in 1848. Six 0-4-2 locomotives were built in 1848 for the LNWR (Southern Division) with 16 in. x 20 in. cylinders, 5 ft. driving wheels, and 3 ft. trailing wheels.

In all Bury, Curtis and Kennedy's Clarence Foundry built about 415 locomotives, but they produced much else besides, from church bells to iron ships. At its height, the firm employed 1,600 men.