Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 140,059 pages of information and 227,378 images on early companies, their products and the people who designed and built them.
F. Hills and Sons of Norton Road, Stockton-on-Tees; of Trafford Park, Manchester.
of County Durham
1849 Company founded.
1935 Built their first aeroplane.
1936 Public company.
1937 Aircraft manufacturers. "Hillson Praga" Monoplane. The plane was based on the Czech E114 Praga; production began in 1936 and ended after 28 air frames in 1939.
1961 Timber importers and manufacturers of doors, plywood, flooring and plastic laminates. 
Built the Pennine and Helvellyn models.