| Name | Street | Town | State | From | To |
|---|---|---|---|---|---|
| Ferree, Isaac I | Pittsburgh | Pennsylvania | 1812 | ||
| Ferree, Isaac I | Pennsylvania | 1812 | 1822 |
| Patent | Date | Remarks |
|---|---|---|
| Contract | for |
|---|---|
| Product |
|---|
|
1786 to 1822 Son of Jacob Ferree and half-brother of Col. Joel Ferree. Isaac had two sons, Joel Thorton and George Spencer who were also gunsmiths. |
