Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,124 pages of information and 233,665 images on early companies, their products and the people who designed and built them.
Henry Augustin Onran Mackenzie (1839-1909), Assoc I C E, of Scole, Norwich
1864 Invented a system of elastic engine wheels which he patented but after a few years let it lapse
1874 Built a steam passenger carrying vehicle and it appeared on the roads of Norfolk.
1874 A steam brougham of very neat appearance was made by Mr. H. Mackenzie, Scole, near Diss, in 1874. The two cylinders were each 3.75 in. diameter and 4.5 in. stroke. Power was transmitted by gearing from the crankshaft to the countershaft, and thence by pitch chain to the driving axle, the ratios being 6 to 1, and 13 to 1, to produce the two speeds. A "Field" type of vertical boiler, 2 ft. diameter and 4 ft. high, was used, intended for working at 135 lbs. pressure per square inch. The driving wheels were 4 ft. diameter. A single steering wheel was actuated from the inside of the carriage. Four passengers could be accommodated inside the vehicle. 
1874 Manager to the Norfolk and Suffolk Border Steam Cultivating Co.
1901 Living at 98 Havehall? Road, Clapham: Henry A. O. Mackenzie (age 61 born France - British subject), Civil Engineer. With his wife Josephine E. Mackenzie (age 41 born Clapham) and their son Ramsey M. B. Mackenzie (age 7 born Clapham). One servant.