| Name | Relationship with Isabella de Taillefer | Civil | Canon |
|---|
| 23rd great-grandson | XXV | 25 |
| Harding, Kate Ellet | 22nd great-granddaughter | XXIV | 24 |
| 23rd great-granddaughter | XXV | 25 |
| Harding, Minnie Antoinette | Wife of the 20th great-grandson | | |
| Wife of the 21st great-grandson | | |
| Harding, Philip Maury | Husband of the 21st great-granddaughter | | |
| Husband of the 22nd great-granddaughter | | |
| Harding, Philip Maury | 22nd great-grandson | XXIV | 24 |
| 23rd great-grandson | XXV | 25 |
| Harding, Phyllis | 22nd great-granddaughter | XXIV | 24 |
| 23rd great-granddaughter | XXV | 25 |
| Harding, Richard Maury | 22nd great-grandson | XXIV | 24 |
| 23rd great-grandson | XXV | 25 |
| Harker, Emma N. | Wife of the 20th great-grandson | | |
| Wife of the 21st great-grandson | | |
| Harris, Ann Longman | 20th great-granddaughter | XXII | 22 |
| 21st great-granddaughter | XXIII | 23 |
| Harris, Donald Stuart D'Arcy | 21st great-grandson | XXIII | 23 |
| 22nd great-grandson | XXIV | 24 |
| Harris, Eleanor Joy | 21st great-granddaughter | XXIII | 23 |
| 22nd great-granddaughter | XXIV | 24 |
| Harris, Ellen Campbell | 20th great-granddaughter | XXII | 22 |
| 21st great-granddaughter | XXIII | 23 |
| Harris, Francis | Husband of the 19th great-granddaughter | | |
| Husband of the 20th great-granddaughter | | |
| Harris, Francis Laurie | 20th great-grandson | XXII | 22 |
| 21st great-grandson | XXIII | 23 |
| Harris, Francis Laurie | 21st great-grandson | XXIII | 23 |
| 22nd great-grandson | XXIV | 24 |
| Harris, James Duncan McNabb | 20th great-grandson | XXII | 22 |
| 21st great-grandson | XXIII | 23 |
| Harris, Mirina Monica Vere | 21st great-granddaughter | XXIII | 23 |
| 22nd great-granddaughter | XXIV | 24 |
| Harris, Robert Carpenter | 20th great-grandson | XXII | 22 |
| 21st great-grandson | XXIII | 23 |
| Harrison, Eleanor Eliza | Wife of the 21st great-grandson | | |
| Wife of the 22nd great-grandson | | |
| Hastings, John | Husband of the 3rd great-granddaughter | | |
| Hayward, Anna Howell | 22nd great-granddaughter | XXIV | 24 |
| 23rd great-granddaughter | XXV | 25 |
| Hayward, Nathan | Husband of the 21st great-granddaughter | | |
| Husband of the 22nd great-granddaughter | | |
| Hayward, Nathan Jr. | 22nd great-grandson | XXIV | 24 |
| 23rd great-grandson | XXV | 25 |
| Heller, Glen Rolland | Husband of the 23rd great-granddaughter | | |
| Husband of the 24th great-granddaughter | | |
| Hemmeldarn, Donna Lee | Wife of the 23rd great-grandson | | |
| Wife of the 24th great-grandson | | |
| Henderson, Harriet Paulina | Wife of the 20th great-grandson | | |
| Wife of the 21st great-grandson | | |
