| 1840 FERGUSON Index | ||||
| Last | First | Census | Location | Census |
| Name | Name | State | (County; Town) | Year |
| Ferguson | E C | MO | Barry; Mt Pleasant | 1840 |
| Ferguson | Elias | MO | Barry; Sugar Creek | 1840 |
| Fergeson | Alex | MO | Benton; Alexander | 1840 |
| Ferguson | Robert | MO | Benton; Lindsey | 1840 |
| Ferguson | John | MO | Boone; Columbia | 1840 |
| Forguson | James | MO | Boone; Missouri | 1840 |
| Furgason | Holland | MO | Boone; Rocky Fork | 1840 |
| Furgison | William | MO | Buchanan; Nodaway | 1840 |
| Furgerson | James | MO | Callaway; Cote Sans Dessein | 1840 |
| Furgerson | John | MO | Callaway; Cote Sans Dessein | 1840 |
| Furgerson | Moses | MO | Callaway; Cote Sans Dessein | 1840 |
| Furgerson | Napolean B | MO | Callaway; Cote Sans Dessein | 1840 |
| Furgerson | Swan | MO | Callaway; Cote Sans Dessein | 1840 |
| Furgerson | Thos | MO | Callaway; no twp listed | 1840 |
| Furgason | Asa | MO | Cape Girardeau; Byrd | 1840 |
| Furgason | Joel | MO | Cape Girardeau; Byrd | 1840 |
| Ferguson | Luke | MO | Cole; Jefferson | 1840 |
| Ferguson | William S | MO | Cole; no twp listed | 1840 |
| Ferguson | William T | MO | Cole; no twp listed | 1840 |
| Furgerson | Benj | MO | Cooper; no twp listed | 1840 |
| Furguson | J C | MO | Cooper; no twp listed | 1840 |
| Forguson | Elijah | MO | Crawford; Johnson | 1840 |
| Forguson | Obadiah | MO | Crawford; Merrimac | 1840 |
| Ferguson | Joseph M | MO | Franklin; St John | 1840 |
| Furgison | Nancy | MO | Gasconade; no twp listed | 1840 |
| Ferguson | Isham | MO | Howard; Prairie | 1840 |
| Ferguson | Aaron | MO | Johnson; Jackson | 1840 |
| Ferguson | Jno C | MO | Johnson; Jackson | 1840 |
| Ferguson | Moses | MO | Johnson; Jackson | 1840 |
| Ferguson | Moses | MO | Johnson; Jackson | 1840 |
| Ferguson | Saml | MO | Johnson; Warrensburg | 1840 |
| Ferguson | William | MO | Lafayette; no twp listed | 1840 |
| Furgerson | Henry | MO | Lewis; no twp listed | 1840 |
| Furgerson | Thomas | MO | Lewis; no twp listed | 1840 |
| Ferguson | David | MO | Lincoln; Hurricane | 1840 |
| Furgurson | John | MO | Macon; Pettis | 1840 |
| Ferguson | John | MO | Marion; Warren | 1840 |
| Ferguson | William K | MO | Marion; Warren | 1840 |
| Ferguson | Jno | MO | Monroe; Jackson | 1840 |
| Ferguson | James A | MO | Montgomery; Bear Creek | 1840 |
| Ferguson | John | MO | Montgomery; Danville | 1840 |
| Fargerson | Bellfield | MO | Morgan; Moreau | 1840 |
| Fargerson | William W | MO | Morgan; Moreau | 1840 |
| Furguson | Anderson | MO | Newton; Benton | 1840 |
| Furguson | Davis | MO | Newton; Benton | 1840 |
| Furgusson | Benedick J | MO | Perry; no twp listed | 1840 |
| Fargusson | James | MO | Perry; no twp listed | 1840 |
| Fergerson | Thomas | MO | Pettis; no twp listed | 1840 |
| Fergerson | William | MO | Pettis; no twp listed | 1840 |
| Ferguson | Edmund | MO | Pike; no twp listed | 1840 |
| Ferguson | John L | MO | Pike; Peno | 1840 |
| Ferguson | Susan | MO | Pike; Peno | 1840 |
| Fergusson | Robert A | MO | Platte; no twp listed | 1840 |
| Fergusson | Thomas | MO | Platte; no twp listed | 1840 |
| Forgerson | John D | MO | Pulaski; no twp listed | 1840 |
| Furguson | George | MO | Randolph; no twp listed | 1840 |
| Ferguson | James C | MO | Randolph; no twp listed | 1840 |
| Ferguson | Wiley | MO | Randolph; no twp listed | 1840 |
| Furguson | William | MO | Randolph; no twp listed | 1840 |
| Farguson | W B | MO | Saint Charles; Portage | 1840 |
| Ferguson | Rebecca | MO | Saint Francois; Marion | 1840 |
| Ferguson | John | MO | Saint Louis; Central | 1840 |
| Furgerson | J | MO | Saint Louis; Merrimack | 1840 |
| Furgeson | Elizabeth | MO | Saint Louis; St Louis | 1840 |
| Ferguson | Peter | MO | Saint Louis; St Louis | 1840 |
| Furguson | James | MO | Saline; Salt Pond | 1840 |
| Furgeson | N G | MO | Scott; Tywopity | 1840 |
| Furgusson | John | MO | Stoddard; no twp listed | 1840 |
| Ferguson | Henry W | MO | Taney; Marion | 1840 |
| Fergerson | Martin | MO | Van Buren; Big Creek | 1840 |
| Furgerson | Russel | MO | Van Buren; Mount Pleasant | 1840 |