D7915 | Richard Johnson and Nephew Ltd, ironmasters and wire drawers | [c1860s] | Richard Johnson and Nephew Ltd, ironmasters and wire drawers | Derbyshire Record Office |
D7915/1 | Plan showing site and location of properties in Alderwasley, Crich and Heage [belonging to... | [c1860s] | Richard Johnson and Nephew Ltd, ironmasters and wire drawers | Derbyshire Record Office |