| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 23rd cousin twice removed | L | 26 |
| Half 23rd cousin twice removed | L | 26 |
| 23rd cousin 3 times removed | LI | 27 |
| Half 24th cousin once removed | LI | 26 |
| Half 23rd cousin 4 times removed | LII | 28 |
| 23rd cousin 4 times removed | LII | 28 |
| 25th cousin once removed | LIII | 27 |
| 24th cousin 3 times removed | LIII | 28 |
| 26th cousin | LIV | 27 |
| Half 24th cousin 4 times removed | LIV | 29 |
| 25th cousin twice removed | LIV | 28 |
| 24th cousin 4 times removed | LIV | 29 |
| Half 26th cousin once removed | LV | 28 |
| 26th cousin once removed | LV | 28 |
| 25th cousin 3 times removed | LV | 29 |
| 24th cousin 5 times removed | LV | 30 |
| 26th cousin twice removed | LVI | 29 |
| 25th cousin 4 times removed | LVI | 30 |
| 26th cousin 3 times removed | LVII | 30 |
| Half 27th cousin once removed | LVII | 29 |
| 25th cousin 5 times removed | LVII | 31 |
| 27th cousin twice removed | LVIII | 30 |
| 26th cousin 4 times removed | LVIII | 31 |
| 28th cousin once removed | LIX | 30 |
| 27th cousin 3 times removed | LIX | 31 |
| 29th cousin | LX | 30 |
| 28th cousin twice removed | LX | 31 |
| 29th cousin once removed | LXI | 31 |
| 28th cousin 3 times removed | LXI | 32 |
| 30th cousin | LXII | 31 |
| 29th cousin twice removed | LXII | 32 |
| 28th cousin 4 times removed | LXII | 33 |
| 29th cousin 3 times removed | LXIII | 33 |
| 30th cousin twice removed | LXIV | 33 |
| 29th cousin 4 times removed | LXIV | 34 |
| Half 31st cousin once removed | LXV | 33 |
| 31st cousin once removed | LXV | 33 |
| 30th cousin 3 times removed | LXV | 34 |
| 31st cousin twice removed | LXVI | 34 |
| 30th cousin 4 times removed | LXVI | 35 |
| 32nd cousin once removed | LXVII | 34 |
| 33rd cousin | LXVIII | 34 |
| 33rd cousin once removed | LXIX | 35 |
| Farrell, William Edward Hunt | Uncle of the husband | | |
| Faslane, Alwyn Or Ailin | 25th great-grandfather | XXVII | 27 |
| Faslane, Awley Mor | 24th great-granduncle | XXVIII | 27 |
| Faslane, Walter | 20th great-grandfather | XXII | 22 |
| Fawneys, Christian | 26th great-grandmother | XXVIII | 28 |
| Fawneys, Richard | 27th great-grandfather | XXIX | 29 |
| Fay, Maud | 28th great-grandmother | XXX | 30 |