| Name | Relationship with Isabella de Taillefer | Civil | Canon |
|---|
| Husband of the 20th great-granddaughter | | |
| Bryan, Mary E. | 20th great-granddaughter | XXII | 22 |
| 21st great-granddaughter | XXIII | 23 |
| Buchanan, Alexis Rene | 26th great-granddaughter | XXVIII | 28 |
| 27th great-granddaughter | XXIX | 29 |
| Buchanon, Benjamin | 25th great-grandson | XXVII | 27 |
| 26th great-grandson | XXVIII | 28 |
| Buchanon, Damien Lloyd | 26th great-grandson | XXVIII | 28 |
| 27th great-grandson | XXIX | 29 |
| Buchanon, Joseph | 25th great-grandson | XXVII | 27 |
| 26th great-grandson | XXVIII | 28 |
| Buchanon, Ron | Ex-husband of the 24th great-granddaughter | | |
| Ex-husband of the 25th great-granddaughter | | |
| Buchanon, Scott | 25th great-grandson | XXVII | 27 |
| 26th great-grandson | XXVIII | 28 |
| Buntin, Mary | Wife of the 20th great-grandson | | |
| Wife of the 21st great-grandson | | |
| Burch, Mary Caroline | Wife of the 20th great-grandson | | |
| Wife of the 21st great-grandson | | |
| Burton, Clyde | Husband of the 22nd great-granddaughter | | |
| Husband of the 23rd great-granddaughter | | |
| Butler, James | Husband of the 2nd great-granddaughter | | |
| Butterworth, Husband | Husband of the 21st great-granddaughter | | |
| Husband of the 22nd great-granddaughter | | |
| C, Winthrop, Ellet | 21st great-grandson | XXIII | 23 |
| 22nd great-grandson | XXIV | 24 |
| Cabell, Charles Ellet | 21st great-grandson | XXIII | 23 |
| 22nd great-grandson | XXIV | 24 |
| Cabell, Elvira Daniel | 21st great-granddaughter | XXIII | 23 |
| 22nd great-granddaughter | XXIV | 24 |
| Cabell, Margaret | 21st great-granddaughter | XXIII | 23 |
| 22nd great-granddaughter | XXIV | 24 |
| Cabell, Mayo | 21st great-grandchild | XXIII | 23 |
| 22nd great-grandchild | XXIV | 24 |
| Cabell, Nina Ellet | 21st great-granddaughter | XXIII | 23 |
| 22nd great-granddaughter | XXIV | 24 |
| Cabell, William | 21st great-grandson | XXIII | 23 |
| 22nd great-grandson | XXIV | 24 |
| Cabell, William Daniel | Husband of the 20th great-granddaughter | | |
| Husband of the 21st great-granddaughter | | |
| Campbell, Emily Elida Halleck | Wife of the 20th great-grandson | | |
| Wife of the 21st great-grandson | | |
| Cargill, Alfred Frances | 20th great-grandson | XXII | 22 |
| 21st great-grandson | XXIII | 23 |
| Cargill, Ann Jane | 20th great-granddaughter | XXII | 22 |
| 21st great-granddaughter | XXIII | 23 |
| Cargill, Catherine Yates | 20th great-granddaughter | XXII | 22 |
| 21st great-granddaughter | XXIII | 23 |
| Cargill, Clive Napier | 21st great-grandson | XXIII | 23 |
| 22nd great-grandson | XXIV | 24 |
