| Name | Relationship with Gilbert de Clare | Civil | Canon |
|---|
| Thornburn, Jean Wilson | 21st great-granddaughter | XXIII | 23 |
| Thornburn, Robert | Husband of the 20th great-granddaughter | | |
| Thornton, Kelsie Dyan | 26th great-granddaughter | XXVIII | 28 |
| Thornton, Lacie Cheyenne | 26th great-granddaughter | XXVIII | 28 |
| Thornton, Stephanie LeAnn | Wife of the 25th great-grandson | | |
| Tilton, Mabel Radcliffe | Wife of the 21st great-grandson | | |
| Tiptoft, John | Husband of the 5th great-granddaughter | | |
| Toland, Sarah | Wife of the 20th great-grandson | | |
| Toledo, Charles | Husband of the 25th great-granddaughter | | |
| Tonkin, Mary | Wife of the 17th great-grandson | | |
| Tonkin, Samuel | Husband of the 17th great-granddaughter | | |
| Torres, Helena | Wife of the 22nd great-grandson | | |
| Travilla, Mary Newlin | 20th great-granddaughter | XXII | 22 |
| Travilla, Thomas Clay | Husband of the 19th great-granddaughter | | |
| Turley, Flora Battle | Wife of the 21st great-grandson | | |
| Turner, Unknown | Wife of the 19th great-grandson | | |
| Unknown, Wife | Wife of the 20th great-grandson | | |
| Unknown, Wife | Wife of the 21st great-grandson | | |
| Unknown, Willis | Husband of the 20th great-granddaughter | | |
| Ussher, Charles | Husband of the 21st great-granddaughter | | |
| Ussher, Donald | 22nd great-grandson | XXIV | 24 |
| Van Buren, John D. | Husband of the 20th great-granddaughter | | |
| Van Buren, John D. | Husband of the 20th great-granddaughter | | |
| Van Buren, John Dash | 21st great-grandson | XXIII | 23 |
| Van Buren, Maurice Pelham | 21st great-grandson | XXIII | 23 |
| Van Doran, Fannie | Wife of the 20th great-grandson | | |
| VanEsselstyn, Richard Herkimer III | Husband of the 25th great-granddaughter | | |
| Viers, Nan | Wife of the 20th great-grandson | | |
| Visser, Humphrey Guy Dalrymple | 21st great-grandson | XXIII | 23 |
| Visser, William James | Husband of the 20th great-granddaughter | | |
| Visser, Willoughby James Midford | 21st great-grandson | XXIII | 23 |
| Waharton, Ellen M | Wife of the 19th great-grandson | | |
| Wainwright, Alice Emily | 20th great-granddaughter | XXII | 22 |
| Wainwright, Caroline | 20th great-granddaughter | XXII | 22 |
| Wainwright, Charles Lennig | 20th great-grandson | XXII | 22 |
| Wainwright, James | Husband of the 18th great-granddaughter | | |
| Wainwright, James Ellet | 19th great-grandson | XXI | 21 |
| Wainwright, John Watson | 20th great-grandson | XXII | 22 |
| Wainwright, Mary Ellett | 20th great-granddaughter | XXII | 22 |
| Wainwright, Rachel | 20th great-granddaughter | XXII | 22 |
| Wainwright, Sarah E. | 20th great-granddaughter | XXII | 22 |
| Wainwright, Thomas B. | 19th great-grandson | XXI | 21 |
| Wainwright, William Donahoo | 21st great-grandson | XXIII | 23 |
| Wainwright, William J. | 19th great-grandson | XXI | 21 |
| Waller, Emma Lausley | Wife of the 20th great-grandson | | |
| Wallis, Elizabeth | Wife of the 16th great-grandson | | |
| Ward, Nora | Wife of the 21st great-grandson | | |
| Ware, Eveline D. | Wife of the 20th great-grandson | | |
| Warner, Elizabeth | Wife of the 17th great-grandson | | |
| Warner, Margaret R. | Wife of the 20th great-grandson | | |
