Black, Hawthorn and Company were based in Gateshead and built locomotives for collieries and ironworks.
The Quarry Field Works were opened in 1835 by John and Ralph Coulthard and the business was known as John Coulthard and Son. It became R Coulthard and Company in 1853 when the partnership was dissolved.
The first locomotive that the organisation built was a 2-4-0 for the York, Newcastle and Berwick Railway. More of this design and several 0-6-0 engines were built although probably only about twenty new locomotives were built. This was because the company undertook a great deal of rebuilding work.
In 1865 Ralph Coulthard retired and the failing works was taken over by William Black and Thomas Hawthorn. The firm then concentrated on building 0-4-0 and 0-6-0 tank engines for industrial use of which was mainly in North East England. They also built a crane engines. Some of the approximately 1,100 locomotives built by then had very long working lives.
The company ceased trading in 1896 when the firm was bought by Chapman and Furneaux who produced a further 70 locomotives before the business closed in 1902. The drawings, patterns and goodwill was bought at this time by R & W Hawthorn and Leslie of Newcastle.
Preserved Locomotives
I have only included standard gauge locomotives which are preserved in Britain.
| Works No | Built | Name | Type | Location |
| 266 | 1873 | Wellington | 0-4-0ST | Wensleydale Railway |
| 305 | 1874 | Bauxite No 2 | 0-4-0ST | National Railway Museum York |
| 897 | 1887 | E No1 | 2-4-0CT | Beamish Museum |
| 912 | 1887 | Aberdeen | 0-4-0ST | Bo’ness and Kinneil Railway |
Preserved British Steam Locomotives 