| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Husband of the 1st cousin 25 times removed | | |
| Husband of the 2nd cousin 23 times removed | | |
| Husband of the 2nd cousin 24 times removed | | |
| Husband of the 2nd cousin 25 times removed | | |
| Husband of the 2nd cousin 26 times removed | | |
| Husband of the 2nd cousin 27 times removed | | |
| Husband of the 2nd cousin 28 times removed | | |
| Husband of the 5th cousin 23 times removed | | |
| Husband of the 5th cousin 24 times removed | | |
| Husband of the 5th cousin 25 times removed | | |
| Husband of the 5th cousin 26 times removed | | |
| Husband of the 5th cousin 27 times removed | | |
| Erskine, Robert Of Mar Keith | 19th great-grandfather | XXI | 21 |
| 2nd cousin 18 times removed | XXIV | 21 |
| Half 1st cousin 20 times removed | XXIV | 22 |
| Half 1st cousin 21 times removed | XXV | 23 |
| 2nd cousin 20 times removed | XXVI | 23 |
| Half 1st cousin 22 times removed | XXVI | 24 |
| Half 1st cousin 23 times removed | XXVII | 25 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| 3rd cousin 22 times removed | XXX | 26 |
| 3rd cousin 23 times removed | XXXI | 27 |
| 5th cousin 19 times removed | XXXI | 25 |
| 4th cousin 21 times removed | XXXI | 26 |
| 4th cousin 22 times removed | XXXII | 27 |
| 5th cousin 20 times removed | XXXII | 26 |
| 5th cousin 21 times removed | XXXIII | 27 |
| 4th cousin 23 times removed | XXXIII | 28 |
| 4th cousin 24 times removed | XXXIV | 29 |
| 5th cousin 22 times removed | XXXIV | 28 |
| 5th cousin 23 times removed | XXXV | 29 |
| 4th cousin 25 times removed | XXXV | 30 |
| 5th cousin 24 times removed | XXXVI | 30 |
| 4th cousin 26 times removed | XXXVI | 31 |
| 5th cousin 25 times removed | XXXVII | 31 |
| 7th cousin 21 times removed | XXXVII | 29 |
| 8th cousin 20 times removed | XXXVIII | 29 |
| 7th cousin 22 times removed | XXXVIII | 30 |
| 8th cousin 21 times removed | XXXIX | 30 |
| 7th cousin 23 times removed | XXXIX | 31 |
| 8th cousin 22 times removed | XL | 31 |
| 7th cousin 24 times removed | XL | 32 |
| 8th cousin 23 times removed | XLI | 32 |
| 7th cousin 25 times removed | XLI | 33 |
| 8th cousin 24 times removed | XLII | 33 |
| Erskine, Thomas Lindsay | 20th great-grandfather | XXII | 22 |
| 1st cousin 19 times removed | XXIII | 21 |
| Half 19th great-granduncle | XXIII | 22 |
| 1st cousin 21 times removed | XXV | 23 |
| Half 21st great-granduncle | XXV | 24 |