| Name | Relationship with Gilbert de Clare | Civil | Canon |
|---|
| Mortimer, Virginia Heth Crothers nee | Wife of the 21st great-grandson | | |
| Morton, Helen Kirkbride | 22nd great-granddaughter | XXIV | 24 |
| Morton, Margaret Villiers | 22nd great-granddaughter | XXIV | 24 |
| Morton, Mary Waln Wistar | 22nd great-granddaughter | XXIV | 24 |
| Morton, Robert | Husband of the 17th great-granddaughter | | |
| Morton, Samuel George | 22nd great-grandson | XXIV | 24 |
| Morton, Sarah Wistar | 22nd great-granddaughter | XXIV | 24 |
| Morton, Thomas George | 22nd great-grandson | XXIV | 24 |
| Morton, Thomas Story Kirkbride | Husband of the 21st great-granddaughter | | |
| Moseley, Ben Perley Poore | 22nd great-grandson | XXIV | 24 |
| Moseley, Charlotte Chapman | 22nd great-granddaughter | XXIV | 24 |
| Moseley, Frederick Strong | Husband of the 21st great-granddaughter | | |
| Moseley, Frederick Strong Jr. | 22nd great-grandson | XXIV | 24 |
| Moseley, Helen | 22nd great-granddaughter | XXIV | 24 |
| Mulford, Catherine | Wife of the 19th great-grandson | | |
| Mumford, Henrietta Saltonstall | Wife of the 21st great-grandson | | |
| Mundy, Wife | Wife of the 21st great-grandson | | |
| Murison, Arthur Cargill | 21st great-grandson | XXIII | 23 |
| Murison, Ella Louise | 21st great-granddaughter | XXIII | 23 |
| Murison, Frances Taylor | 21st great-grandson | XXIII | 23 |
| Murison, Mabel Elizabeth | 21st great-granddaughter | XXIII | 23 |
| Murison, Maude | 21st great-granddaughter | XXIII | 23 |
| Murison, William Bertram | 21st great-grandson | XXIII | 23 |
| Murison, William Dick | Husband of the 20th great-granddaughter | | |
| Murray, Zeborah | Wife of the 24th great-grandson | | |
| Musson, Rosalee | Wife of the 22nd great-grandson | | |
| Myers, Mary Ann | Wife of the 20th great-grandson | | |
| Napier, Blanche Mary | 21st great-granddaughter | XXIII | 23 |
| Napier, Charles Edward | 21st great-grandson | XXIII | 23 |
| Napier, Clive Hastings | 21st great-grandson | XXIII | 23 |
| Napier, David John | Husband of the 20th great-granddaughter | | |
| Napier, Ethel Isabella | 21st great-granddaughter | XXIII | 23 |
| Napier, Herbert Edgar | 21st great-grandson | XXIII | 23 |
| Napier, Katherine Elizabeth | 21st great-granddaughter | XXIII | 23 |
| Napier, William David | 21st great-grandson | XXIII | 23 |
| Neale, Cecilia Helen | 21st great-granddaughter | XXIII | 23 |
| Neale, Frank Leslie | Husband of the 20th great-granddaughter | | |
| Neale, Margaret Acton | 21st great-granddaughter | XXIII | 23 |
| Neill, Maria E. | Wife of the 20th great-grandson | | |
| Nelson, Louise | Wife of the 22nd great-grandson | | |
| Newlin, Annesley | Husband of the 19th great-granddaughter | | |
| Newlin, Benjamin | Husband of the 18th great-granddaughter | | |
| Newlin, Benjamin Franklin | 20th great-grandson | XXII | 22 |
| Newlin, Frances Emma | 20th great-granddaughter | XXII | 22 |
| Newlin, Martha Woodnutt | 19th great-granddaughter | XXI | 21 |
| Nichols, Daniel James | 23rd great-grandson | XXV | 25 |
| Nichols, James | Husband of the 22nd great-granddaughter | | |
| Nichols, Roberta Elizabeth | 23rd great-granddaughter | XXV | 25 |
| Noble, Mary | Wife of the 19th great-grandson | | |
| Norris, Isaac | Husband of the 14th great-granddaughter | | |
