| Name | Relationship with Robert Brislin | Civil | Canon |
| Cochron, Sollie Bergner | 2nd cousin | VI | 3 |
| Coe, Bill | Husband of the 1st cousin twice removed | | |
| Cofer, Teresa | Wife of the 2nd cousin | | |
| Conrad, Violet | Wife of the 2nd cousin twice removed | | |
| | Wife of the 4th cousin once removed | | |
| Cooper, Elizabeth | Wife of the 3rd great-granduncle | | |
| Cooper, Minnie Emma | Wife of the 3rd cousin twice removed | | |
| Cooper, Waylon | Husband of the 3rd cousin | | |
| Corley, Jenna Lea | 3rd cousin 3 times removed | XI | 7 |
| Corley, Larry Jacob | 3rd cousin 3 times removed | XI | 7 |
| Corley, Larry Scott | Husband of the 3rd cousin twice removed | | |
| Corley, Rachel Elizabeth | Grandniece of the wife | | |
| Corley, Sean Bishop | Grandnephew of the wife | | |
| Coshatt, Jesse J. | 2nd great-grandfather | IV | 4 |
| Coshatt, Phoebe Angeline | Great-grandmother | III | 3 |
| Coshatt, Shelby | 3rd great-grandfather | V | 5 |
| Cost, Maggie | Wife of the 2nd cousin twice removed | | |
| Countryman, Betty Joyce | 2nd cousin | VI | 3 |
| Countryman, Cline Nolan | 2nd cousin once removed | VII | 4 |
| Countryman, Clyde | Husband of the 1st cousin once removed | | |
| Countryman, Gary Nolan | 2nd cousin | VI | 3 |
| Countryman, Tammy Denise | 2nd cousin once removed | VII | 4 |
| Cowan, Ruth | Wife of the 2nd cousin twice removed | | |
| Cox, ??? | Husband of the 2nd cousin | | |
| Cox, Paul | Husband of the 2nd cousin | | |
| Cox, Two Children | 2nd cousin once removed | VII | 4 |
| Craft, Richard L. | Husband of the 1st cousin 4 times removed | | |
| Crafton, Amy Marie | 2nd cousin twice removed | VIII | 5 |
| Crafton, Wiley | Husband of the 2nd cousin once removed | | |
| Craig, Joel Frank | 2nd cousin twice removed | VIII | 5 |
| Craig, Phillip Kahn | 2nd cousin twice removed | VIII | 5 |
| Craig, Thomas L. | Husband of the 2nd cousin once removed | | |
| Craig, Thomas L., Jr. | 2nd cousin twice removed | VIII | 5 |
| Crater, ??? | Husband of the 3rd cousin twice removed | | |
| Crater, Lucetta M. | Wife of the 1st cousin 3 times removed | | |
| | Wife of the 3rd cousin twice removed | | |
| Creel, Lena | Wife of the 1st cousin twice removed | | |
| Croom, Elizabeth | Wife of the 1st cousin 4 times removed | | |
| Croom, John M. | 1st cousin 4 times removed | VIII | 6 |
| Croom, Lavinia | 2nd cousin 3 times removed | IX | 6 |
| Croom, Polly | 1st cousin 4 times removed | VIII | 6 |
| Croom, Sarah L. | 2nd cousin 3 times removed | IX | 6 |
| Croom, Simon | Husband of the 3rd great-grandaunt | | |
| Cross, Allyson Lee | 2nd cousin once removed | VII | 4 |
| Cross, Jeane Carol | 2nd cousin once removed | VII | 4 |
| Cross, Phillip | 2nd cousin once removed | VII | 4 |
| Cross, Wayland | Husband of the 2nd cousin | | |
| Dailey, Thomas | Husband of the 1st cousin 3 times removed | | |
| Daily, Donna | Wife of the 2nd cousin | | |
| Daily, Velma Angela | Wife of the 2nd cousin | | |