| Name | Relationship with Gilbert de Clare | Civil | Canon |
|---|
| Clemmer, Doris Eileen | 24th great-granddaughter | XXVI | 26 |
| Clemmer, Erna Dee Dee Doreen | 24th great-granddaughter | XXVI | 26 |
| Clemmer, Hattie Elenora | 23rd great-granddaughter | XXV | 25 |
| Clemmer, James Eugene | 24th great-grandson | XXVI | 26 |
| Clemmer, James Morris | 23rd great-grandson | XXV | 25 |
| Clemmer, Marlene Ann | 24th great-granddaughter | XXVI | 26 |
| Clemmer, Mary Eliza | 23rd great-granddaughter | XXV | 25 |
| Clemmer, Sadye Ellen | 23rd great-granddaughter | XXV | 25 |
| Clemmer, William Allen Grant | 23rd great-grandson | XXV | 25 |
| Clossin, Carl David | 23rd great-grandson | XXV | 25 |
| Clossin, Harry | Husband of the 21st great-granddaughter | | |
| Clossin, Helen Louise | 22nd great-granddaughter | XXIV | 24 |
| Clossin, Joe Daniel | 22nd great-grandson | XXIV | 24 |
| Clossin, Morris Miller | 22nd great-grandson | XXIV | 24 |
| Clough, John | Husband of the 20th great-granddaughter | | |
| Clough, Mary Anne | 21st great-granddaughter | XXIII | 23 |
| Coldstream, Margaret Muir | Wife of the 21st great-grandson | | |
| Coleman, Kate S. | Wife of the 19th great-grandson | | |
| Conwall, Mary Conghill | Wife of the 20th great-grandson | | |
| Cope, Nettie | Wife of the 21st great-grandson | | |
| Coxe, Mary Louise | Wife of the 21st great-grandson | | |
| Crandell, Cleveland M. | Husband of the 20th great-granddaughter | | |
| Crawford, Mary | Wife of the 21st great-grandson | | |
| Cripps, Hannah | Wife of the 16th great-grandson | | |
| Cullen, Bettie | Wife of the 20th great-grandson | | |
| Cupp, Albert L. | Husband of the 22nd great-granddaughter | | |
| Cupp, Eunice Josephine (Josie) | Wife of the 22nd great-grandson | | |
| Daily, Mary June | Wife of the 24th great-grandson | | |
| Daniels, Elvira A. | Wife of the 19th great-grandson | | |
| Darnell, Alice | Wife of the 22nd great-grandson | | |
| Davis, Annie R. | 21st great-granddaughter | XXIII | 23 |
| Davis, David | 20th great-grandson | XXII | 22 |
| Davis, David II | 20th great-grandson | XXII | 22 |
| Davis, David M. | Husband of the 19th great-granddaughter | | |
| Davis, Ellen Matlack | 20th great-granddaughter | XXII | 22 |
| Davis, Franklin | 20th great-grandson | XXII | 22 |
| Davis, Hannah Smith | 20th great-granddaughter | XXII | 22 |
| Davis, Henry Clement | 20th great-grandson | XXII | 22 |
| Davis, Mary H. | 20th great-granddaughter | XXII | 22 |
| Davis, Matlack | 20th great-grandson | XXII | 22 |
| Davis, Rosa | 21st great-granddaughter | XXIII | 23 |
| Davis, Smith | 20th great-grandson | XXII | 22 |
| de Amory, Roger | Husband of the great-granddaughter | | |
| de Audley, Hugh | Husband of the great-granddaughter | | |
| de Audley, Margaret | 2nd great-granddaughter | IV | 4 |
| de Beauchamp, Philippa | Wife of the 3rd great-grandson | | |
| de Bruce, Robert | Son-in-law | | |
| de Burgh, Elizabeth | 3rd great-granddaughter | V | 5 |
| de Burgh, John | Husband of the great-granddaughter | | |
| de Burgh, Margaret | Daughter-in-law | | |
