There were distinct differences between the Southern and Northern Division locomotive policies. Wolverton had been set up in 1838 for repair work only, the locomotives being purchased from outside firms, whereas Crewe, from its foundation in 1843, was a locomotive-building works. Only a dozen locomotives were built at Wolverton from 1845 to the end of 1854, but in the following year construction started in earnest, and another 154 were completed in 1855–1863. The Southern Division engines were bigger, heavier and more expensive than those of the Northern Division, and after a disagreement with the cost-conscious Chairman, Richard Moon, in 1862 McConnell was obliged to resign. The Southern and Northern locomotive departments were amalgamated, and John Ramsbottom became Locomotive Superintendent of the entire LNWR, his headquarters remaining at Crewe. Locomotive building and repairing were gradually run down at Wolverton, which became the LNWR's carriage works in 1865.