| Name | Relationship with Gilbert de Clare | Civil | Canon |
|---|
| Howell, Sophie Neill | 21st great-granddaughter | XXIII | 23 |
| Howell, Thomas James | 20th great-grandson | XXII | 22 |
| Howell, Virginia Heth | 22nd great-granddaughter | XXIV | 24 |
| Howell, William Neill | 21st great-grandson | XXIII | 23 |
| Howey, Anna Maria | Wife of the 19th great-grandson | | |
| Hoyt, Louis T. | Husband of the 20th great-granddaughter | | |
| Hughes, Harvey Gillingham | Husband of the 20th great-granddaughter | | |
| Hulse, Letitia Collins | Wife of the 21st great-grandson | | |
| Humphreys, Joseph A. | Husband of the 20th great-granddaughter | | |
| Hunt, Elizabeth Wyatt | 19th great-granddaughter | XXI | 21 |
| Hunt, Hannah | 19th great-granddaughter | XXI | 21 |
| Hunt, Hannah | 19th great-granddaughter | XXI | 21 |
| Hunt, James | Husband of the 18th great-granddaughter | | |
| Hunt, James | 20th great-grandson | XXII | 22 |
| Hunt, James L. | 19th great-grandson | XXI | 21 |
| Hunt, John James | 19th great-grandson | XXI | 21 |
| Hunt, Mary Ann | 20th great-granddaughter | XXII | 22 |
| Hunt, Mary Carpenter | 19th great-granddaughter | XXI | 21 |
| Hunt, Naomi P. | 19th great-granddaughter | XXI | 21 |
| Hunt, Rachel Gibbons | 19th great-granddaughter | XXI | 21 |
| Hunt, Sarah W. | 19th great-granddaughter | XXI | 21 |
| Hunt, William C. | 19th great-grandson | XXI | 21 |
| Hurst, Florence | Wife of the 21st great-grandson | | |
| Huston, Mary West | Wife of the 21st great-grandson | | |
| Hutchins, Wife | Wife of the 19th great-grandson | | |
| Ievan, Howell ap | Husband of the 8th great-granddaughter | | |
| Innes, Emily Leonard | Wife of the 21st great-grandson | | |
| Israel, Mary | Wife of the 18th great-grandson | | |
| Jackson, Mary | Wife of the 19th great-grandson | | |
| Jarman, Mary | Wife of the 19th great-grandson | | |
| Jeffers, Annie Miller | Wife of the 20th great-grandson | | |
| Jeffries, Eliza Berry | 21st great-granddaughter | XXIII | 23 |
| Jeffries, Evan Shelby | Husband of the 20th great-granddaughter | | |
| Jeffries, Evan Shelby | 21st great-grandson | XXIII | 23 |
| Jeffries, Henry Ellet | 21st great-grandson | XXIII | 23 |
| Jeffries, James Earl | 21st great-grandson | XXIII | 23 |
| Jeffries, Jennie Maury | 21st great-granddaughter | XXIII | 23 |
| Jeffries, Joseph Ellet | 21st great-grandson | XXIII | 23 |
| Jeffries, Kate Ellet | 21st great-granddaughter | XXIII | 23 |
| Jeffries, Nathaniel | 21st great-grandson | XXIII | 23 |
| Jeffries, Rebecca Ellet | 21st great-granddaughter | XXIII | 23 |
| Jeffries, Sarah Terry | 21st great-granddaughter | XXIII | 23 |
| Jeffries, William Terry | 21st great-grandson | XXIII | 23 |
| Jelly, Aunt Peanut Butter & | 22nd great-granddaughter | XXIV | 24 |
| Jenk, Myrtle Leeper Jensen | Wife of the 22nd great-grandson | | |
| Joanna | Wife of the grandson | | |
| Jones, Anna Woodruff | 21st great-granddaughter | XXIII | 23 |
| Jones, Aquila (M.D.) | 19th great-grandson | XXI | 21 |
| Jones, Arthur Woodruff | 21st great-grandson | XXIII | 23 |
| Jones, Edward Carpenter | 19th great-grandson | XXI | 21 |
