| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 12th cousin 19 times removed | XLV | 32 |
| 11th cousin 21 times removed | XLV | 33 |
| 12th cousin 20 times removed | XLVI | 33 |
| 11th cousin 22 times removed | XLVI | 34 |
| Husband of the 1st cousin 19 times removed | | |
| Husband of the half 1st cousin 21 times removed | | |
| Husband of the 1st cousin 22 times removed | | |
| Husband of the half 2nd cousin 21 times removed | | |
| Husband of the half 2nd cousin 22 times removed | | |
| Husband of the 4th cousin 19 times removed | | |
| Husband of the 4th cousin 20 times removed | | |
| Husband of the 5th cousin 19 times removed | | |
| Husband of the 4th cousin 21 times removed | | |
| Husband of the 4th cousin 22 times removed | | |
| Husband of the 5th cousin 20 times removed | | |
| Husband of the 5th cousin 21 times removed | | |
| Husband of the 5th cousin 22 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 8th cousin 20 times removed | | |
| Husband of the 8th cousin 21 times removed | | |
| Husband of the 8th cousin 22 times removed | | |
| Husband of the 8th cousin 23 times removed | | |
| Husband of the 8th cousin 24 times removed | | |
| Montgomerie, John Murray | 22nd great-grandfather | XXIV | 24 |
| 23rd great-grandfather | XXV | 25 |
| 21st great-granduncle | XXV | 24 |
| 23rd great-granduncle | XXVII | 26 |
| 6th cousin 23 times removed | XXXVII | 30 |
| 6th cousin 26 times removed | XL | 33 |
| Montgomerie, John Of Eastwood | 22nd great-grandfather | XXIV | 24 |
| 23rd great-grandfather | XXV | 25 |
| 24th great-grandfather | XXVI | 26 |
| 5th cousin 24 times removed | XXXVI | 30 |
| 5th cousin 27 times removed | XXXIX | 33 |
| Montgomerie, Margaret Boyd | 17th great-grandaunt | XXI | 20 |
| 3rd cousin 17 times removed | XXV | 21 |
| 2nd cousin 20 times removed | XXVI | 23 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 4th cousin 16 times removed | XXVI | 21 |
| 5th cousin 15 times removed | XXVII | 21 |
| Half 3rd cousin 19 times removed | XXVII | 23 |
| Half 4th cousin 17 times removed | XXVII | 22 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| Half 4th cousin 18 times removed | XXVIII | 23 |
| 5th cousin 16 times removed | XXVIII | 22 |
| Half 5th cousin 16 times removed | XXVIII | 22 |
| Half 5th cousin 17 times removed | XXIX | 23 |
| 6th cousin 15 times removed | XXIX | 22 |