Webster, Birch and Co
of Salford
One of the machines they had made was a drying machine which was supplied to a dye works in Blackburn[1]
1832 To be let: a mill situate in Foundry Street, Salford, in the possession of Messrs Webster, Birch and Co., machine makers. The mill is four storeys high, 26 yards long and 11 yards wide, and is worked by a steam engine of 16 horses’ power. Apply to J. and T. Sherratt [2]
Presumably successors were Webster, Birch and Mather?