Richard Birley and Co
of Manchester, cotton spinners and manufacturers.
1855 Thomas Hornby Birley the younger left the partnership with Richard Birley, John Macmillan Dunlop, and Duncan Matheson, in the businesses of Cotton Spinners, and Manufacturers, and Machine Makers, carried on at Chorlton-upon-Medlock and Manchester, under the firms of Richard Birley and Co., and John M. Dunlop and Co.[1]
1856 Duncan Matheson left the partnership[2]
1858 Dissolution of the Partnership between Richard Birley and John Macmillan Dunlop, in the trades or businesses of Cotton Spinners and Manufacturers, under the style or firm of Richard Birley and Co, and of Engineers and Machine Makers, under the style or firm of J. M. Dunlop and Co., and carried on at the city of Manchester, in the county of Lancaster[3]