Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,386 pages of information and 233,857 images on early companies, their products and the people who designed and built them.
Marine engineers, of Dumbarton
c.1854 Made V-twin geared trunk engines for the steamers Cottingham and Empress. Diameter of stepped cylinder 50"/31", 2 ft stroke. 11 ft dia propeller.
1861 Employing 408 men 
1862 Listed as Tulloch and Denny