| Surname | Township |
| Fahr | Friendship, Mainshore |
| Farley | Cache |
| Farmer | Hurricane, Jones, Union |
| Farrar | Jones, Salem, Ward 2 |
| Faubush | Ward 2 |
| Faulkner | Cache, Friendship, Poland, Ward 2 |
| Fellows | Clarke |
| Felton | Ward 3 |
| Felts | Ward 3 |
| Fergerson | Ward 1 |
| Ferguson | Lake, Mainshore |
| Ferree | Ward 2 |
| Ferrel | St. Francis |
| Ferrell | Hurricane |
| Fielder | Cache, Hurricane, Salem |
| Fields | Cache, Hurricane, Jones, Poland, Ward 2 |
| Filgor | Ward 3 |
| Filgor/Filgar | Ward 1 |
| Finley | Clarke |
| Fisher | Clarke, Lake |
| Fitch | Friendship |
| Fitzgerald | Jones, Spring Grove |
| Flanery | Cache |
| Fleming | Ward 3 |
| Flemmings | Ward 2 |
| Fletcher | Mainshore, Poland, Salem |
| Flewelling | Union |
| Flippins | Ward 3 |
| Flocken | Ward 2 |
| Floyd | Ward 2 |
| Flugor | Ward 3 |
| Foard | Cache |
| Forbes | Ward 2 |
| Forbess | Cache, Union |
| Forcum | Salem |
| Ford | Friendship, Lake, Mainshore, St. Francis, Union |
| Foreman | Clarke |
| Forsythe | Clarke, Union |
| Fortenberry | St. Francis |
| Fortson | Union |
| Foster | Bryan, Hurricane, Shady Grove, Spring Grove, |
| Foster | Union, Ward 1, Ward 2 |
| Fowler | Mainshore |
| Francis | Lake |
| Franks | Crowley, Poland, Salem |
| Fratz | Blue Cane |
| Freed | Union |
| Freeman | Hurricane, Lake, Salem, St. Francis, Ward 2 |
| French | Hurricane, Jones |
| Frentress | Mainshore |
| Frettenburg | Mainshore |
| Frey | Mainshore |
| Friar | Bryan, Clarke, Crowley |
| Frield | Blue Cane, Hurrincane |
| Frields | Hurricane |
| Fritz | Blue Cane |
| Frock | Union |
| Fucal/Fuqua ? | Ward 1 |
| Fulks | Hurricane |
| Fuqua | Ward 1 |
| Fureigh | Cache |
| Furguson | Ward 2 |
| Furlong | Ward 1 |
| Furtle | Mainshore |
| Futghum? | Union |
| Futrell | Cache |
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