| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 23rd cousin 10 times removed | LVIII | 34 |
| 24th cousin 8 times removed | LVIII | 33 |
| 22nd cousin 12 times removed | LVIII | 35 |
| Craig, Thomas Chirnside | 12th great-grandfather | XIV | 14 |
| Husband of the 7th cousin 11 times removed | | |
| Husband of the 9th cousin 13 times removed | | |
| Husband of the half 9th cousin 13 times removed | | |
| Husband of the 9th cousin 14 times removed | | |
| Husband of the half 10th cousin 13 times removed | | |
| Husband of the half 10th cousin 14 times removed | | |
| Husband of the half 12th cousin 11 times removed | | |
| Husband of the 12th cousin 11 times removed | | |
| Husband of the 12th cousin 12 times removed | | |
| Husband of the half 13th cousin 11 times removed | | |
| Husband of the 13th cousin 11 times removed | | |
| Husband of the 12th cousin 13 times removed | | |
| Husband of the half 12th cousin 14 times removed | | |
| Husband of the 12th cousin 14 times removed | | |
| Husband of the 13th cousin 12 times removed | | |
| Husband of the 13th cousin 13 times removed | | |
| Husband of the 14th cousin 12 times removed | | |
| Husband of the half 13th cousin 14 times removed | | |
| Husband of the 15th cousin 10 times removed | | |
| Husband of the 13th cousin 14 times removed | | |
| Husband of the 13th cousin 15 times removed | | |
| Husband of the 13th cousin 16 times removed | | |
| Husband of the 14th cousin 15 times removed | | |
| Husband of the 15th cousin 13 times removed | | |
| Husband of the 13th cousin 17 times removed | | |
| Husband of the 16th cousin 12 times removed | | |
| Husband of the 16th cousin 13 times removed | | |
| Husband of the 16th cousin 14 times removed | | |
| Husband of the 16th cousin 15 times removed | | |
| Husband of the 18th cousin 11 times removed | | |
| Husband of the 16th cousin 16 times removed | | |
| Husband of the 18th cousin 12 times removed | | |
| Husband of the 20th cousin 9 times removed | | |
| Husband of the 18th cousin 13 times removed | | |
| Husband of the 19th cousin 12 times removed | | |
| Husband of the 19th cousin 14 times removed | | |
| Husband of the 20th cousin 12 times removed | | |
| Husband of the 18th cousin 16 times removed | | |
| Craig, Thomas Dalgliesh | 10th great-granduncle | XIV | 13 |
| 9th cousin 9 times removed | XXIX | 19 |
| 11th cousin 11 times removed | XXXV | 23 |
| Half 11th cousin 11 times removed | XXXV | 23 |
| 11th cousin 12 times removed | XXXVI | 24 |
| Half 12th cousin 11 times removed | XXXVII | 24 |
| Half 12th cousin 12 times removed | XXXVIII | 25 |
| Half 14th cousin 9 times removed | XXXIX | 24 |