| Name | Street | Town | State | From | To |
|---|---|---|---|---|---|
| Johnston, J. H. (Great Western Gun Works) |
621 Smithfield | Pittsburgh | Pennsylvania | 1886 |
| Patent | Date | Remarks |
|---|---|---|
| Contract | for |
|---|---|
| Product |
|---|
|
J.F. Diffenbacher's Directory of Pittsburgh and Allegheny Cities of 1886 Kentucky rifles with barrels marked J. Johnston are known Probably J.H. Johnson is a variation of his name |
