| 1800 FERGUSONs | ||||
| Last | Given | Census | Census | |
| Name | Name | State | Location | Year |
| Ferguson | James | MD | Allegany; Sandy Creek | 1800 |
| Fergerson | Wm | MD | Baltimore; Baltimore City | 1800 |
| Ferguson | Mrs | MD | Baltimore; Baltimore City | 1800 |
| Ferguson | Ternas | MD | Baltimore; Baltimore City | 1800 |
| Furguson | Robert | MD | Baltimore; Baltimore City | 1800 |
| Ferguson | Robert | MD | Charles; Port Tobacco Parish | 1800 |
| Ferguson | William | MD | Frederick; District 3 | 1800 |
| Forguson | John | MD | Frederick; Taneytown 5-Dist | 1800 |
| Forguson | Samuel | MD | Frederick; Taneytown 5-Dist | 1800 |
| Forguson | William | MD | Frederick; Taneytown 5-Dist | 1800 |
| Fergeson | Colin Rev | MD | Kent; Middle District | 1800 |
| Ferguson | Daniel | MD | Kent; Middle District | 1800 |
| Ferguson | Hugh | MD | Kent; Middle District | 1800 |
| Ferguson | Richard | MD | Kent; Middle District | 1800 |
| Ferguson | Sarah | MD | Kent; Middle District | 1800 |
| Furgerson | Rezin | MD | Montgomery; District 1 | 1800 |
| Furgerson | Michael | MD | Montgomery; District 4 | 1800 |
| Fergason | Josias | MD | Prince Georges; No Twp Listed | 1800 |
| Ferguson | James | MD | Prince Georges; No Twp Listed | 1800 |
| Forgason | Jonathan | MD | St Marys; No Twp Listed | 1800 |
| Ferguson | John | MD | Talbot; No Twp Listed | 1800 |
| Fergason | Peg | MD | Talbot; Not Stated | 1800 |
| Furguson | Samuel | MD | Washington; Elizabeth | 1800 |
| Ferguson | James | MD | Washington; Hagerstown | 1800 |