1836
J Surnames
| Surname | First Name | County | Page |
| Jacks | William N. | Demoine | 72 |
| Jackson | George | Demoine | 51 |
| Jackson | George | Demoine | 59 |
| Jackson | George | Demoine | 72 |
| Jackson | John | Demoine | 53 |
| Jackson | John | Demoine | 88 |
| Jackson | Leroy | Dubuque | 18 |
| Jackson | Levi L. | Demoine | 58 |
| Jackson | Nehemiah | Demoine | 77 |
| Jackson | Solomon | Demoine | 60 |
| Jacobs | Mr. | Dubuque | 37 |
| Jago | Abraham | Demoine | 61 |
| James | J.S. | Dubuque | 13 |
| James | Peter | Dubuque | 16 |
| James | W. | Dubuque | 43 |
| Janes | John | Demoine | 60 |
| Jarvis | George | Demoine | 51 |
| Jenkins | W.L. | Demoine | 79 |
| Jocia | Silvester | Dubuque | 20 |
| Johns | James | Dubuque | 24 |
| Johnson | Abington | Demoine | 70 |
| Johnson | C.B.S. | Dubuque | 27 |
| Johnson | Jesse | Demoine | 82 |
| Johnson | Jesse | Demoine | 59 |
| Johnson | Joseph | Demoine | 77 |
| Johnson | Mary | Demoine | 79 |
| Jone | ? | Dubuque | 41 |
| Jones | Abraham | Demoine | 93 |
| Jones | Berryman | Demoine | 80 |
| Jones | Claibourne | Demoine | 75 |
| Jones | E | Dubuque | 39 |
| Jones | G.W. | Dubuque | 32 |
| Jones | Hugh | Dubuque | 25 |
| Jones | J. | Dubuque | 40 |
| Jones | James B. | Demoine | 93 |
| Jones | John | Dubuque | 16 |
| Jones | John | Dubuque | 22 |
| Jones | John | Demoine | 6 |
| Jones | Peter P. | Demoine | 58 |
| Jones | Richard W. | Demoine | 70 |
| Jones | Ross | Demoine | 90 |
| Jones | S. | Dubuque | 33 |
| Jones | Thomas | Demoine | 92 |
| Jones | W. | Dubuque | 41 |
| Jones | William | Dubuque | 39 |
| Jordan | Isaac | Demoine | 79 |
| Jordan | James J. | Demoine | 72 |
| Jordan | Resin | Dubuque | 23 |
| Jordan | William | Demoine | 70 |
| Judd | Thomas C. | Dubuque | 26 |