Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,179 pages of information and 233,417 images on early companies, their products and the people who designed and built them.
J. & A. Blyth of Limehouse, London
Millwrights and Steam Engine Boiler Makers.
1847 'NEW PATENTS FOR SEPTEMBER. (From Newton and Son's list.) ….. John Blyth and Alfred Blyth, both of St Ann's, Limehouse, Middlesex, engineers, and John M'Culloch, of Masemore-cottages, Old Kent-road, Surrey, chemist, for certain improvements in apparatus for distilling and rectifying.' 
1853 Two-cylinder oscillating marine engine from the paddle tug 'Orsova' on display at Vienna Technical Museum. See photo.
1870 Advert: 'JOHN AND ALFRED BLYTH, ENGINEER, LIMEHOUSE, LONDON. E.
Makers of Marine Steam Engines, POWERFUL DREDGING MACHINERY AND Improved Engines. Cane Mills, And Apparatus for the Manufacture of Sugar. DRAWINGS FOR STEAM AND CATTLE MILLS, ENGINES, MULTITUBULAR BOILERS —BATTERIES COMPLETE. All for sugar-making, on show at PINHEIRO BROS., Agents.