| Name | Relationship with Gilbert de Clare | Civil | Canon |
|---|
| Carpenter, Samuel Preston | 20th great-grandson | XXII | 22 |
| Carpenter, Samuel Preston | 21st great-grandson | XXIII | 23 |
| Carpenter, Samuel Preston Jr. | 19th great-grandson | XXI | 21 |
| Carpenter, Samuel Tonkin | 19th great-grandson | XXI | 21 |
| Carpenter, Samuel William | 18th great-grandson | XX | 20 |
| Carpenter, Sarah | 17th great-granddaughter | XIX | 19 |
| Carpenter, Sarah Caroline | 20th great-granddaughter | XXII | 22 |
| Carpenter, Sarah Mary | 18th great-granddaughter | XX | 20 |
| Carpenter, Sarah Stratton | 20th great-granddaughter | XXII | 22 |
| Carpenter, Sarah Wyatt | 19th great-granddaughter | XXI | 21 |
| Carpenter, Sophie | 21st great-granddaughter | XXIII | 23 |
| Carpenter, Sophie Carr | 20th great-granddaughter | XXII | 22 |
| Carpenter, Susan Mary | 20th great-granddaughter | XXII | 22 |
| Carpenter, Thomas | 16th great-grandson | XVIII | 18 |
| Carpenter, Thomas | 17th great-grandson | XIX | 19 |
| Carpenter, Thomas | 17th great-grandson | XIX | 19 |
| Carpenter, Thomas | 18th great-grandson | XX | 20 |
| Carpenter, Thomas Preston | 19th great-grandson | XXI | 21 |
| Carpenter, Thomas Preston | 20th great-grandson | XXII | 22 |
| Carpenter, Thomas Preston | 20th great-grandson | XXII | 22 |
| Carpenter, William | 17th great-grandson | XIX | 19 |
| Carpenter, William | 18th great-grandson | XX | 20 |
| Carpenter, William | 19th great-grandson | XXI | 21 |
| Carpenter, William Dorr | 21st great-grandson | XXIII | 23 |
| Catherwood, Emma | Wife of the 20th great-grandson | | |
| Chalfont, Lynda | Wife of the 23rd great-grandson | | |
| Chambers, Jess | Husband of the 23rd great-granddaughter | | |
| Champlain, Frances | Wife of the 19th great-grandson | | |
| Chapin, Lillian Louise | Wife of the 21st great-grandson | | |
| Cheston, Katherine Wirt | Wife of the 21st great-grandson | | |
| Childears, Mary Childers - | Wife of the 21st great-grandson | | |
| Church, Elizabeth K. | Wife of the 20th great-grandson | | |
| Church, Sara | Wife of the 19th great-grandson | | |
| Clark, Charles Carpenter Milbourne | 20th great-grandson | XXII | 22 |
| Clark, Dalrymple Gey Lovibond | 20th great-grandson | XXII | 22 |
| Clark, Elizabeth Ann | 20th great-granddaughter | XXII | 22 |
| Clark, Emma | Wife of the 21st great-grandson | | |
| Clark, Emma Caroline Almeria | 20th great-granddaughter | XXII | 22 |
| Clark, Mary Ann | 20th great-granddaughter | XXII | 22 |
| Clark, Robert | Husband of the 18th great-granddaughter | | |
| Clark, Thomas Milbourne | 19th great-grandson | XXI | 21 |
| Clawson, Abigail Louise | 20th great-granddaughter | XXII | 22 |
| Clawson, James McDonald | 21st great-grandson | XXIII | 23 |
| Clawson, Josiah D. | Husband of the 19th great-granddaughter | | |
| Clawson, Mildred | 21st great-granddaughter | XXIII | 23 |
| Clawson, William Shinn | 20th great-grandson | XXII | 22 |
| Clemmer, Ava Margaret | 23rd great-granddaughter | XXV | 25 |
| Clemmer, Charles Byron Leroy | 23rd great-grandson | XXV | 25 |
| Clemmer, Charles William | Husband of the 22nd great-granddaughter | | |
| Clemmer, Danny Lee | 24th great-grandson | XXVI | 26 |
