| Last | First | Middle | War | Comments | Cemetery |
| Colliver | Richard | | Civil War | Sgt. Co C 2nd Missouri Cavalry | West Grove |
| Colliver | Thomas | | Civil War | Sgt. Co G 2nd Iowa Infantry | West Grove |
| Colsten | Wm. | | Civil War | Pvt. 6th Iowa Cavalry | Mt Gilead |
| Conner | John | | Civil War | Pvt. Co E 3rd Iowa Infantry | Troy |
| Conner | John | | War of 1812 | | Troy |
| Cook | Joseph | | World War I | | Bloomfield IOOF |
| Coons | James | | Civil War | Co. A. 4th Iowa Infantry | Atwood |
| Coop | Curtis | | World War II | | Pulaski K. P. |
| Cornet | George | | Civil War | Pvt. Co A 3rd Iowa Cavalry | Drakesville |
| Corrick | William | C. | Civil War | Pvt. Co A 2nd Iowa Battalion | Round Grove |
| Cosgrove | John | | World War II | | West Grove |
| Coshaw | J. | T. | Civil War | Pvt. Co D 3rd Iowa Infantry | Drakesville |
| Cossell | Peter | G. | World War II | | Pulaski K. P. |
| Cox | Robert | | World War I | | Bloomfield IOOF |
| Cox | Wendell | | World War I | | Bloomfield IOOF |
| Coy | Claude | | World War II | | Bloomfield IOOF |
| Coyner | Archibald | | Civil War | Pvt. Co I 14th Iowa Infantry | Lester |
| Craig | Haden | | World War I | | Bloomfield IOOF |
| Crawford | Bobby | | Korean War | | Bloomfield IOOF |
| Crawford | James | S. | Mexican War | | Drakesville |
| Crawford | Stephen | C. | Mexican War | Co. E. Reg. 1 Indiana Infantry | Drakesville |
| Cree | William | | World War I | | Bloomfield IOOF |
| Crouse | Frank | | World War I | | Bloomfield IOOF |
| Cruikshank | Harold | | World War II | | Bloomfield IOOF |
| Cummings | Edwin | | World War II | | Bloomfield IOOF |
| Cunningham | Cyrenuis | | Civil War | Sgt. Co A 3rd Iowa Cavalry | West Grove |
| Curl | Joesph | L. | World War I | | Bloomfield IOOF |
| Curl | Joseph | W. | Civil War | Co G 2nd Iowa Infantry | Bloomfield IOOF |
| Curl | Robert | | World War II | (LIA) | Bloomfield IOOF |
| Curtis | Reuben | | Civil War | Cpl. Co K 45th Iowa Infantry | Troy |