C
| Surname | First Name | County | Page |
| Cable | Andrew | Demoine | 90 |
| Cackler | SC | Dubuque | 38 |
| Cadady | Gayen | Dubuque | 35 |
| Cain | Paul | Dubuque | 23 |
| Caldwell | James J | Demoine | 76 |
| Caldwell | John | Demoine | 76 |
| Caldwell | Thomas | Demoine | 76 |
| Cambell | James A. | Demoine | 88 |
| Cambell | JR | Demoine | 38 |
| Cammel | Mr. | Dubuque | 37 |
| Cammel | Scott | Dubuque | 33 |
| Camp | Atherel D. | Demoine | 90 |
| Camp | HT | Dubuque | 31 |
| Camp | JH | Demoine | 68 |
| Camron | James | Demoine | 85 |
| Canada | Ambros | Dubuque | 26 |
| Candy | John | Demoine | 67 |
| Cannady | Nathan | Demoine | 68 |
| Cannida | Cornelias | Dubuque | 27 |
| Cannon | George | Dubuque | 16 |
| Canon | Clemont | Dubuque | 22 |
| Canterberry | Isaac | Demoine | 87 |
| Car | Genjamin | Demoine | 55 |
| Cardiff | William | Dubuque | 23 |
| Cardinal | ustach | Dubuque | 12 |
| Carish | P. | Dubuque | 23 |
| Carl | Jesse | Demoine | 72 |
| Carlin | William | Dubuque | 32 |
| Carmack | Joseph | Demoine | 60 |
| Carman | Garrison | Demoine | 55 |
| Carnew | William | Demoine | 77 |
| Carpenter | Allin | Dubuque | 44 |
| Carpenter | William | Demoine | 86 |
| Carr | Benjamin | Demoine | 81 |
| Carr | E | Dubuque | 18 |
| Carroll | Nicholas | Dubuque | 25 |
| Carter | Andrew | Demoine | 71 |
| Carter | Jehu | Demoine | 59 |
| Carter | Job | Demoine | 78 |
| Carter | Joseph | Demoine | 78 |
| Carter | Orein | Demoine | 85 |
| Carter | William | Dubuque | 20 |
| Cartwright | Daniel G. | Demoine | 86 |
| Cartwright | Silas | Demoine | 53 |
| Carty | Martin | Dubuque | 11 |
| Casey | James W. | Demoine | 89 |
| Casey | Randolph | Demoine | 79 |
| Cashlin | M. | Dubuque | 40 |
| Casibear | J.C. | Demoine | 66 |
| Cass | Lewis | Demoine | 64 |
| Casterline | Jonathan | Demoine | 84 |
| Caulk | Henry | Demoine | 76 |
| Caulk | Leven | Demoine | 75 |
| Caulk | Robert | Demoine | 76 |
| Chace | Lyman | Demoine | 81 |
| Chamberlain | Levi | Demoine | 55 |
| Chambers | James | Demoine | 55 |
| Chambers | William | Demoine | 55 |
| Chamness | Israel | Demoine | 76 |
| Chance | Daniel | Demoine | 84 |
| Chance | DR | Demoine | 53 |
| Chance | Reuben | Demoine | 86 |
| Chandler | Elihu | Demoine | 86 |
| Chandler | John C. | Demoine | 87 |
| Chapman | Emison | Dubuque | 29 |
| Chapman | Johnson | Demoine | 60 |
| Chapman | William W. | Demoine | 87 |
| Chercott | F | Dubuque | 45 |
| Childers | Richard | Demoine | 75 |
| Childers | Robert | Demoine | 89 |
| Childs | and Hollinsworth | Dubuque | 29 |
| Churchill | Lewis | Dubuque | 19 |
| Clang | A. | Demoine | 66 |
| Clark | Abrahm | Demoine | 90 |
| Clark | Benjamin W. | Demoine | 61 |
| Clark | GW | Demoine | 91 |
| Clark | James | Dubuque | 28 |
| Clark | S. | Demoine | 59 |
| Clark | Samuel | Demoine | 66 |
| Clark | Thomas | Demoine | 77 |
| Clark | TM | Demoine | 59 |
| Clarke | Benjamin | Demoine | 77 |
| Clarke | Joshua | Demoine | 75 |
| Clarke | Thomas | Demoine | 75 |
| Clarke | Wilson B. | Demoine | 60 |
| Claton | Matison | Demoine | 72 |
| Claton | Samuel | Demoine | 60 |
| Cleavland | Esekiah | Demoine | 11 |
| Clifton | SL | Dubuque | 66 |
| Clinith | Gideon | Demoine | 55 |
| Clully | Daniel | Demoine | 55 |
| Clully | WL | Demoine | 90 |
| Coalton | Levi S. | Demoine | 90 |
| Cobb | John | Demoine | 89 |
| Cochram | Edward | Demoine | 70 |
| Cochran | John R. | Demoine | 84 |
| Cock | Robert | Demoine | 91 |
| Coffman | John | Dubuque | 11 |
| Coggan | M | Dubuque | 41 |
| Cole | George | Demoine | 77 |
| Cole | Henney | Demoine | 59 |
| Cole | Samuel | Demoine | 52 |
| Cole | Stephen | Demoine | 81 |
| Coleman | JG | Demoine | 55 |
| Coleman | William H | Dubuque | 21 |
| Collfield | Orvin | Demoine | 67 |
| Collins | Henry | Demoine | 22 |
| Collins | Moses | Dubuque | 27 |
| Collins | William | Dubuque | 28 |
| Colter | Thomas | Dubuque | 21 |
| Combs | Samuel | Demoine | 67 |
| Compton | Hussetow | Demoine | 84 |
| Conck | Samuel | Demoine | 67 |
| Condit | SG | Dubuque | 41 |
| Conner | Cornelius | Demoine | 85 |
| Connerad | Nathan | Demoine | 63 |
| Conway | Arthur | Dubuque | 11 |
| Conway | Mason | Dubuque | 25 |
| Coo | Ira | Demoine | 90 |
| Cook | George W. | Demoine | 92 |
| Cook | Obadiah | Demoine | 72 |
| Cook | Thomas | Dubuque | 35 |
| Cook | William | Dubuque | 35 |
| Cook | William L | Demoine | 90 |
| Coola | Andrew | Dubuque | 24 |
| Coon | A. | Dubuque | 27 |
| Coon | Edward | Demoine | 58 |
| Coop | David | Demoine | 59 |
| Coop | Thomas | Dubuque | 23 |
| Coop | W.G. | Demoine | 59 |
| Coop | William | Dubuque | 31 |
| Cooper | Exekiel | Demoine | 75 |
| Cooper | Thomas | Demoine | 91 |
| Copple | Isaac | Demoine | 86 |
| Cordle | James | Demoine | 67 |
| Coriell | A | Dubuque | 21 |
| Coriell | Augustus | Dubuque | 15 |
| Coriell | Baptiste | Dubuque | 44 |
| Coriell | William | Dubuque | 32 |
| Corkery | Charles | Dubuque | 30 |
| Corkery | Patrick | Dubuque | 17 |
| Corna | Bates | Dubuque | 12 |
| Cornelius | Absolem | Demoine | 76 |
| Cornia | G | Dubuque | 44 |
| Cota | Ant. | Dubuque | 13 |
| Coticus | F. | Dubuque | 25 |
| Cottle | Royal | Demoine | 88 |
| Cotton | John S. | Demoine | 58 |
| Cousin | Joseph | Dubuque | 35 |
| Cowpersthwaite | William P. | Demoine | 91 |
| Cox | James | Dubuque | 14 |
| Cox | Samuel | Dubuque | 18 |
| Coxl | P | Dubuque | 25 |
| Crago | James | Demoine | 62 |
| Craighead | Isaiah | Dubuque | 34 |
| Crane | jacob | Demoine | 78 |
| Crane | Joseph | Demoine | 89 |
| Crane | Samuel L | Demoine | 89 |
| Crane | Thomas M. | Demoine | 89 |
| Creag | JM | Dubuque | 29 |
| Creel | Elija | Dubuque | 34 |
| Creighton | William | Demoine | 82 |
| Crenshaw | Isaac | Demoine | 88 |
| Creswell | John | Demoine | 55 |
| Crider | James | Dubuque | 15 |
| Cronwall | RP | Dubuque | 26 |
| Crookshanks | Alexander | Demoine | 60 |
| Crott | M | Dubuque | 37 |
| Crow | Jacob | Demoine | 70 |
| Crow | John | Demoine | 70 |
| Crow | Lewis | Demoine | 70 |
| Crump | Armstead | Demoine | 91 |
| Crupp | John | Dubuque | 20 |
| Crutchfield | James | Demoine | 85 |
| Cullin | Mathew | Dubuque | 23 |
| Cullin | Mayo | Demoine | 55 |
| Cummins | GW | Dubuque | 23 |
| Cumstock | Samuel | Demoine | 55 |
| Cunningham | John | Dubuque | 17 |
| Currin | E | Dubuque | 17 |
| Currin | James | Dubuque | 17 |
| Curry | William | Demoine | 87 |
| Curtner | CC | Dubuque | 14 |
| Cusley | Robert | Demoine | 78 |
| Cutbirth | Jeremiah | Demoine | 85 |
| Cutler | Jacob | Demoine | 62 |
| Cutler | JC | Demoine | 63 |
| Cyrus | Enoch | Demoine | 86 |