| Fergusson | Peter | MD | Baltimore; 2-Wd Baltimore | 1820 |
| Fergurson | Thomas | MD | Baltimore; 4-Dist | 1820 |
| Farguharson | Chas | MD | Baltimore; 6-Wd Baltimore | 1820 |
| Furguson | James | MD | Baltimore; 9-Wd Baltimore | 1820 |
| Furguson | Wm | MD | Baltimore; 9-Wd Baltimore | 1820 |
| Ferguson | Elizabeth | MD | Caroline; 2-Dist | 1820 |
| Fergurson | Hugh | MD | Cecil; 2-Dist | 1820 |
| Fergurson | Thomas | MD | Cecil; 2-Dist | 1820 |
| Ferguson | Zebulon | MD | Cecil; 2-Dist | 1820 |
| Ferguson | Hugh T | MD | Cecil; 3-Dist | 1820 |
| Ferguson | John Of H | MD | Cecil; 4-Dist | 1820 |
| Ferguson | John Of T | MD | Cecil; 4-Dist | 1820 |
| Furguson | James | MD | Charles; 2-Dist | 1820 |
| Furguson | Robert | MD | Charles; Durham | 1820 |
| Furgurson | Samuel | MD | Dorchester; 1-Dist | 1820 |
| Furgerson | Margaret | MD | Dorchester; 5-Dist | 1820 |
| Ferguson | William | MD | Frederick; Emmitsburg | 1820 |
| Forguson | John | MD | Frederick; Taneytown | 1820 |
| Ferguson | John | MD | Frederick; Westminster | 1820 |
| Ferguson | Daniel | MD | Kent; 2-Dist | 1820 |
| Ferguson | John | MD | Kent; 2-Dist | 1820 |
| Ferguson | Jno | MD | Kent; 3-Dist | 1820 |
| Fergusson | Enos | MD | Prince Georges; 3-Dist | 1820 |
| Fergerson | Margery | MD | Prince Georges; Bladensburg | 1820 |
| Fargesson | Addam | MD | Queen Annes; 2-Dist | 1820 |
| Furguson | Henry | MD | St Marys; 4-Dist | 1820 |
| Furgerson | Jonathan | MD | St Marys; 4-Dist | 1820 |
| Furguson | James | MD | Talbot; Easton | 1820 |
| Furguson | Jane | MD | Washington; 3-Dist | 1820 |