| 1840 FERGUSON Index | ||||
| Last | First | Census | Location | Census |
| Name | Name | State | (County; Town) | Year |
| Ferguson | James | MI | Barry; Gilead | 1840 |
| Ferguson | Washington | MI | Barry; Niles | 1840 |
| Ferguson | Elijah | MI | Branch; Coldwater | 1840 |
| Ferguson | Daniel | MI | Clinton; no twp listed | 1840 |
| Ferguson | Orange | MI | Clinton; no twp listed | 1840 |
| Furguson | John | MI | Genesee; Fayette | 1840 |
| Ferguson | Chas | MI | Genesee; Grand Bland | 1840 |
| Furguson | Hiram | MI | Genesee; Wheatland | 1840 |
| Furguson | Jonah | MI | Genesee; Wheatland | 1840 |
| Furguson | Robert E | MI | Genesee; Wheatland | 1840 |
| Furguson | Worden | MI | Genesee; Wheatland | 1840 |
| Furgason | Hezakiah | MI | Ingham; Ingham | 1840 |
| Furgeson | Levi | MI | Ionia; Lyons | 1840 |
| Ferguson | Jesse | MI | Jackson; Tompkins | 1840 |
| Ferguson | Walter | MI | Jackson; Tompkins | 1840 |
| Furgason | Andrew | MI | Kent; no twp listed | 1840 |
| Fergenson | Geo | MI | Lenawee; Blissfield | 1840 |
| Furgison | Willard | MI | Lenawee; Cambridge | 1840 |
| Fergerson | Henry | MI | Lenawee; Fairfield | 1840 |
| Ferguson | James | MI | Lenawee; Fairfield | 1840 |
| Fergerson | Orra | MI | Lenawee; Fairfield | 1840 |
| Furgerson | E | MI | Lenawee; Medina | 1840 |
| Fergerson | Abram | MI | Lenawee; Rome | 1840 |
| Fergason | Joseph | MI | Lenawee; Seneca | 1840 |
| Furgerson | Thos | MI | Livingston; Unadilla | 1840 |
| Ferguson | Aaron | MI | Macomb; Bruce | 1840 |
| Ferguson | Boyce | MI | Macomb; Bruce | 1840 |
| Furgurson | Nicholas | MI | Oakland; Addison | 1840 |
| Furgerson | Stephen J | MI | Oakland; Addison | 1840 |
| Ferguson | J | MI | Oakland; Oxford | 1840 |
| Furguson | E | MI | Oakland; Royal Oak | 1840 |
| Furguson | Erastus | MI | Oakland; Royal Oak | 1840 |
| Ferguson | H | MI | Oakland; Waterford | 1840 |
| Furgerson | Ember | MI | Oakland; White Lake | 1840 |
| Ferguson | Wm | MI | Oceana; Norton | 1840 |
| Farguharson | John | MI | Saginaw; Saginaw | 1840 |
| Ferguson | Daniel | MI | Saint Clair; Port Huron | 1840 |
| Ferguson | Jesse | MI | Saint Joseph; Bucks | 1840 |
| Furgeson | George | MI | Saint Joseph; White Pigeon | 1840 |
| Furgerson | Hannah | MI | Van Buren; Keeler | 1840 |
| Furgason | Geo | MI | Washtenaw; no twp listed | 1840 |
| Furgeson | Jas | MI | Washtenaw; no twp listed | 1840 |
| Furgason | John | MI | Washtenaw; no twp listed | 1840 |
| Furgason | Wallace | MI | Washtenaw; Superior | 1840 |
| Ferguson | Harcourt | MI | Wayne; Nankon | 1840 |
| Ferguson | Philene | MI | Wayne; Nankon | 1840 |
| Furgerson | Leander | MI | Wayne; Plymouth | 1840 |
| Furguson | Charles | MI | Wayne; Van Buren | 1840 |