| Name | Relationship with John FitzAlan | Civil | Canon |
|---|
| Half 2nd cousin 3 times removed | IX | 6 |
| 3rd cousin twice removed | X | 6 |
| 3rd cousin 3 times removed | XI | 7 |
| Half 4th cousin twice removed | XII | 7 |
| 4th cousin 3 times removed | XIII | 8 |
| Half 4th cousin 3 times removed | XIII | 8 |
| Thomas, Anna Frances | 16th great-grandniece | XX | 19 |
| 1st cousin 18 times removed | XXII | 20 |
| Half 2nd cousin 19 times removed | XXV | 22 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 3rd cousin 19 times removed | XXVII | 23 |
| 4th cousin 17 times removed | XXVII | 22 |
| Half 4th cousin 18 times removed | XXVIII | 23 |
| 4th cousin 18 times removed | XXVIII | 23 |
| 4th cousin 19 times removed | XXIX | 24 |
| Half 4th cousin 19 times removed | XXIX | 24 |
| Thomas, I | 2nd great-grandfather | IV | 4 |
| Thomas, Martha Mary | Wife of the 14th great-grandnephew | | |
| Wife of the 1st cousin 16 times removed | | |
| Wife of the half 2nd cousin 17 times removed | | |
| Wife of the 3rd cousin 16 times removed | | |
| Wife of the 3rd cousin 17 times removed | | |
| Wife of the 4th cousin 15 times removed | | |
| Wife of the half 4th cousin 16 times removed | | |
| Wife of the 4th cousin 16 times removed | | |
| Wife of the 4th cousin 17 times removed | | |
| Wife of the half 4th cousin 17 times removed | | |
| Thomas, Mary W. | Wife of the 15th great-grandnephew | | |
| Wife of the 1st cousin 17 times removed | | |
| Wife of the half 2nd cousin 18 times removed | | |
| Wife of the 3rd cousin 17 times removed | | |
| Wife of the 3rd cousin 18 times removed | | |
| Wife of the 4th cousin 16 times removed | | |
| Wife of the half 4th cousin 17 times removed | | |
| Wife of the 4th cousin 17 times removed | | |
| Wife of the 4th cousin 18 times removed | | |
| Wife of the half 4th cousin 18 times removed | | |
| Thomas, Rebecca Stevens | Wife of the 16th great-grandnephew | | |
| Wife of the 1st cousin 18 times removed | | |
| Wife of the half 2nd cousin 19 times removed | | |
| Wife of the 3rd cousin 18 times removed | | |
| Wife of the 3rd cousin 19 times removed | | |
| Wife of the 4th cousin 17 times removed | | |
| Wife of the half 4th cousin 18 times removed | | |
| Wife of the 4th cousin 18 times removed | | |
| Wife of the 4th cousin 19 times removed | | |
| Wife of the half 4th cousin 19 times removed | | |
| Thomas, Richard | Husband of the 15th great-grandniece | | |
| Husband of the 1st cousin 17 times removed | | |
| Husband of the half 2nd cousin 18 times removed | | |
