Originally trading as Humpidge, Holborow & Co,
in 1899 the company was reorganised; their steam-engine business was sold and the works were devoted to the manufacture of gas and oil engines becoming Dudbridge Iron Works.
In 1903 Managing Director James Dickerson Humpidge was killed
‘A FLY-WHEEL BURSTS. FITTER KILLED AND DIRECTOR INJURED. At Dudbridge Ironworks, Stroud, Saturday, a new 120-h.p. gas engine was being tried when the fly-wheel suddenly burst, and the fragments flew into hundreds of pieces. A fitter named French was killed, and Mr. J. D. Humpidge, a director of the firm and President of the Gloucestershire Engineering Society, who was watching the operations, was seriously injured about the head. The roof of the works was wrecked, and a piece of iron weighing 3cwt. pierced the roof and descended into another room, narrowly missing the men there employed.’
With thanks to https://www.gracesguide.co.uk/File:Salmson-DudbridgeIronWor…
Mr Clarence Roberts sustained serious injury in an accident.