Builder Products Notes
RSH Robert Stephenson and Hawthorn (Darlington etc) Rail
Road

Though based in the North East there are a couple of links to Leeds engine building. Many of the locomotive orders built at the Round Foundry were subcontracted from Robert Stephenson, a century later Robert Stephenson & Hawthorn built some of Hunslet's Austerity 0-6-0ST's. After Kitson had closed the goodwill was transferred to RSH so when Corby wanted. Some of the early Fowler ploughing engines were built by RSH. 
Works History
16 survivors out of 129 records, 12.4% survive

Books


Note - there might be a few builders in this list that are not in Leeds as they built Leeds designed locos as sub contractors.