| Name | Relationship with John FitzAlan | Civil | Canon |
|---|
| 4th cousin 20 times removed | XXX | 25 |
| Half 4th cousin 20 times removed | XXX | 25 |
| Howell, John Paschall | 15th great-grandnephew | XIX | 18 |
| 1st cousin 17 times removed | XXI | 19 |
| Half 2nd cousin 18 times removed | XXIV | 21 |
| 3rd cousin 17 times removed | XXV | 21 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 4th cousin 16 times removed | XXVI | 21 |
| Half 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 18 times removed | XXVIII | 23 |
| Half 4th cousin 18 times removed | XXVIII | 23 |
| Howell, Joshua Ladd | 15th great-grandnephew | XIX | 18 |
| 1st cousin 17 times removed | XXI | 19 |
| Half 2nd cousin 18 times removed | XXIV | 21 |
| 3rd cousin 17 times removed | XXV | 21 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 4th cousin 16 times removed | XXVI | 21 |
| Half 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 18 times removed | XXVIII | 23 |
| Half 4th cousin 18 times removed | XXVIII | 23 |
| Howell, Mortimer | 17th great-grandnephew | XXI | 20 |
| 1st cousin 19 times removed | XXIII | 21 |
| Half 2nd cousin 20 times removed | XXVI | 23 |
| 3rd cousin 19 times removed | XXVII | 23 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| 4th cousin 18 times removed | XXVIII | 23 |
| Half 4th cousin 19 times removed | XXIX | 24 |
| 4th cousin 19 times removed | XXIX | 24 |
| 4th cousin 20 times removed | XXX | 25 |
| Half 4th cousin 20 times removed | XXX | 25 |
| Howell, Richard | 17th great-grandnephew | XXI | 20 |
| 1st cousin 19 times removed | XXIII | 21 |
| Half 2nd cousin 20 times removed | XXVI | 23 |
| 3rd cousin 19 times removed | XXVII | 23 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| 4th cousin 18 times removed | XXVIII | 23 |
| Half 4th cousin 19 times removed | XXIX | 24 |
| 4th cousin 19 times removed | XXIX | 24 |
| 4th cousin 20 times removed | XXX | 25 |
| Half 4th cousin 20 times removed | XXX | 25 |
| Howell, Richard Holmes Offley | 15th great-grandnephew | XIX | 18 |
| 1st cousin 17 times removed | XXI | 19 |
| Half 2nd cousin 18 times removed | XXIV | 21 |
| 3rd cousin 17 times removed | XXV | 21 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 4th cousin 16 times removed | XXVI | 21 |
| Half 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 17 times removed | XXVII | 22 |
