David Colfox Bolton (1890-1980) of Thomas Bolton and Sons
1913 Built a cyclecar for the 1913 Cyclecar Grand Prix but did not start. Details and illustrations. This was the Bolton-Precision cyclecar 8 h.p. with belt-drive.[1]
1922 M.Inst.Met., Mech. Eng.; Local Director, Thomas Bolton and Sons, Ltd.; b. 1890; s. of Thomas Bolton. Ed. Abbotsholme Sch. Training: University of Birmingham. Career: Responsible for building and equipment of Brass and Bronze Extrusion, Rolling, and Wire-drawing Mills, and the design of various furnaces, of Thos. Bolton and Sons, Ltd., Froghall, Staffs, during the recent War; and in 1920 for their new Diamond Die Manufacturing Works at Parkstone, Dorset; holds patents for "Bright Annealing' Furnace," and "Petrol Turbine." Club: R.A.C., London. Address: Strathearn, Suffolk Road, South,. Bournemouth.
See mention in Motor Sport Magazine]