D4484 | Johnson and Nephew of Ambergate, wire manufacturers | 1888-1974 | Johnson and Nephew of Ambergate, wire manufacturers | Derbyshire Record Office |
D4572 | Richard Johnson and Nephew of Alderwasley Wire Mills, Ambergate, wire manufacturers | 1910-1995 | Richard Johnson and Nephew of Alderwasley Wire Mills, Ambergate, wire manufacturers | Derbyshire Record Office |
D7340 | Richard Johnson and Nephew of Ambergate, wire works (also known as Alderwasley Iron Mills) | [late 19th-early 20th cent] | Richard Johnson and Nephew of Ambergate, wire works (also known as Alderwasley Iron Mills) | Derbyshire Record Office |
D7915 | Richard Johnson and Nephew Ltd, ironmasters and wire drawers | [c1860s] | Richard Johnson and Nephew Ltd, ironmasters and wire drawers | Derbyshire Record Office |
LS/338.4 | Two hundred years of Richard Johnson & Nephew. | 1973 | | Derbyshire Record Office |