| 1840 FERGUSON Index | ||||
| Last | First | Census | Location | Census |
| Name | Name | State | (County; Town) | Year |
| Ferguson | Danl | NH | Hillsborough; Bedford | 1840 |
| Ferguson | John | NH | Hillsborough; Bedford | 1840 |
| Ferguson | John | NH | Hillsborough; Manchester | 1840 |
| Ferguson | James | NH | Hillsborough; Temple | 1840 |
| Furguson | Bradbury | NH | Rockingham; Exeter | 1840 |
| Fergeson | Maria | NH | Rockingham; Portsmouth | 1840 |
| Furginson | John G | NH | Strafford; Moultonborough | 1840 |
| Furguson | Bettey | NH | Strafford; Sandwich | 1840 |
| Furguson | Bettey | NH | Strafford; Sandwich | 1840 |
| Fergurson | John P | NH | Strafford; Tamworth | 1840 |