| Name | Relationship with Michael Biddulph | Civil | Canon |
| Cameron, John (Jack) H | Husband of the 2nd great-grandaunt | | |
| Campbell, Anne | Wife of the 2nd great-grandfather | | |
| Capp, Charles Solomon | Husband of the 3rd great-grandaunt | | |
| Capper, James | Husband of the 4th great-grandaunt | | |
| Husband of the 6th cousin 5 times removed | | |
| Husband of the 5th cousin 7 times removed | | |
| Capper, John | Husband of the 4th great-grandaunt | | |
| Husband of the 6th cousin 5 times removed | | |
| Husband of the 5th cousin 7 times removed | | |
| Casties, Margaret | Wife of the great-granduncle | | |
| Catherine | 3rd great-grandmother | V | 5 |
| Cave, Alexander | 16th great-grandfather | XVIII | 18 |
| Cave, Alice | 10th great-grandmother | XII | 12 |
| Cave, Elizabeth | 9th great-grandmother | XI | 11 |
| Cave, John | 17th great-grandfather | XIX | 19 |
| Cave, Peter | 15th great-grandfather | XVII | 17 |
| Cave, Peter | 14th great-grandfather | XVI | 16 |
| Cave, Richard | 12th great-grandfather | XIV | 14 |
| Cave, Roger | 10th great-grandfather | XII | 12 |
| Cave, Thomas | 13th great-grandfather | XV | 15 |
| Cave, Thomas | 11th great-grandfather | XIII | 13 |
| Cawkwell, Annie Marie | Great-grandaunt | V | 4 |
| Cawkwell, Elizabeth | Great-grandmother | III | 3 |
| Cawkwell, George Albert | Great-granduncle | V | 4 |
| Cawkwell, John | 3rd great-grandfather | V | 5 |
| Cawkwell, Louisa | Great-grandaunt | V | 4 |
| Cawkwell, Susan | Great-grandaunt | V | 4 |
| Cawkwell, William | 2nd great-grandfather | IV | 4 |
| Cawkwell, William Charles | Great-granduncle | V | 4 |
| Cawkwell, William Charles | Great-granduncle | V | 4 |
| Cecil, Margaret | 10th great-grandmother | XII | 12 |
| Cecil, Richard | 11th great-grandfather | XIII | 13 |
| Cecil, William | 10th great-granduncle | XIV | 13 |
| Centlivres, Elizabeth Matilda | 4th great-grandmother | VI | 6 |
| Centlivres, Frederic Cooke | 4th great-granduncle | VIII | 7 |
| Centlivres, John Christian | 5th great-grandfather | VII | 7 |
| Centlivres, John Nathaniel | 4th great-granduncle | VIII | 7 |
| Centlivres, Nathaniel Anthony John | 4th great-granduncle | VIII | 7 |
| Centlivres, Nathaniel Petter | 4th great-granduncle | VIII | 7 |
| Champion, Harriet K | Wife of the 2nd great-granduncle | | |
| Chase, George | 4th great-grandfather | VI | 6 |
| Chase, John Centlivres | 3rd great-granduncle | VII | 6 |
| Chase, Mary Stewart | 3rd great-grandmother | V | 5 |
| Wife of the 7th cousin 4 times removed | | |
| Wife of the 6th cousin 6 times removed | | |
| Wife of the 7th cousin 6 times removed | | |
| Wife of the 8th cousin 4 times removed | | |
| Chelmington, Elizabeth | 15th great-grandmother | XVII | 17 |
| Chelmington, John Thomas | 16th great-grandfather | XVIII | 18 |
| Chisholm, James | Husband of the 4th great-grandaunt | | |