▁The ▁Southern ▁Division ' s ▁trains ▁were ▁longer ▁and ▁heav ier , ▁and ▁ 0 - 6 - 0 ▁loc os ▁had ▁been ▁introduced ▁as ▁early ▁as ▁ 1 8 4 5 . ▁ ▁There ▁were ▁distinct ▁differences ▁between ▁the ▁Southern ▁and ▁Northern ▁Division ▁locomot ive ▁policies . ▁Wol ver ton ▁had ▁been ▁set ▁up ▁in ▁ 1 8 3 8 ▁for ▁repair ▁work ▁only , ▁the ▁locomot ives ▁being ▁purchased ▁from ▁outside ▁fir ms , ▁whereas ▁Cre we , ▁from ▁its ▁foundation ▁in ▁ 1 8 4 3 , ▁was ▁a ▁locomot ive - building ▁works . ▁Only ▁a ▁dozen ▁locomot ives ▁were ▁built ▁at ▁Wol ver ton ▁from ▁ 1 8 4 5 ▁to ▁the ▁end ▁of ▁ 1 8 5 4 , ▁but ▁in ▁the ▁following ▁year ▁construction ▁started ▁in ▁earnest , ▁and ▁another ▁ 1 5 4 ▁were ▁completed ▁in ▁ 1 8 5 5 – 1 8 6 3 . ▁The ▁Southern ▁Division ▁engines ▁were ▁bigger , ▁heav ier ▁and ▁more ▁expensive ▁than ▁those ▁of ▁the ▁Northern ▁Division , ▁and ▁after ▁a ▁disag re ement ▁with ▁the ▁cost - cons cious ▁Chair man , ▁Richard ▁Moon , ▁in ▁ 1 8 6 2 ▁Mc Con nell ▁was ▁obliged ▁to ▁res ign . ▁The ▁Southern ▁and ▁Northern ▁locomot ive ▁depart ments ▁were ▁am alg am ated , ▁and ▁John ▁R ams bottom ▁became ▁Lo comot ive ▁Super int endent ▁of ▁the ▁entire ▁L N WR , ▁his ▁headquarters ▁remaining ▁at ▁Cre we . ▁Lo comot ive ▁building ▁and ▁repair