| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 10th cousin 18 times removed | XL | 29 |
| 9th cousin 20 times removed | XL | 30 |
| 11th cousin 16 times removed | XL | 28 |
| 8th cousin 22 times removed | XL | 31 |
| 9th cousin 21 times removed | XLI | 31 |
| 10th cousin 19 times removed | XLI | 30 |
| 11th cousin 17 times removed | XLI | 29 |
| 12th cousin 15 times removed | XLI | 28 |
| 10th cousin 20 times removed | XLII | 31 |
| 11th cousin 18 times removed | XLII | 30 |
| 12th cousin 16 times removed | XLII | 29 |
| 13th cousin 14 times removed | XLII | 28 |
| 13th cousin 15 times removed | XLIII | 29 |
| 10th cousin 21 times removed | XLIII | 32 |
| 11th cousin 19 times removed | XLIII | 31 |
| 12th cousin 17 times removed | XLIII | 30 |
| 13th cousin 16 times removed | XLIV | 30 |
| 14th cousin 14 times removed | XLIV | 29 |
| 10th cousin 22 times removed | XLIV | 33 |
| 11th cousin 20 times removed | XLIV | 32 |
| 12th cousin 18 times removed | XLIV | 31 |
| 13th cousin 17 times removed | XLV | 31 |
| 14th cousin 15 times removed | XLV | 30 |
| 11th cousin 21 times removed | XLV | 33 |
| 12th cousin 19 times removed | XLV | 32 |
| 13th cousin 18 times removed | XLVI | 32 |
| 14th cousin 16 times removed | XLVI | 31 |
| 12th cousin 20 times removed | XLVI | 33 |
| 13th cousin 19 times removed | XLVII | 33 |
| 14th cousin 17 times removed | XLVII | 32 |
| 12th cousin 21 times removed | XLVII | 34 |
| 14th cousin 18 times removed | XLVIII | 33 |
| 13th cousin 20 times removed | XLVIII | 34 |
| Montgomerie, Emma Belleme | 28th great-grandaunt | XXXII | 31 |
| 29th great-grandaunt | XXXIII | 32 |
| 30th great-grandaunt | XXXIV | 33 |
| Montgomerie, Hugh Belleme | 28th great-granduncle | XXXII | 31 |
| 29th great-granduncle | XXXIII | 32 |
| 30th great-granduncle | XXXIV | 33 |
| Montgomerie, Hugo Taurode | 29th great-granduncle | XXXIII | 32 |
| 30th great-granduncle | XXXIV | 33 |
| 31st great-granduncle | XXXV | 34 |
| Montgomerie, John | 24th great-grandfather | XXVI | 26 |
| 25th great-grandfather | XXVII | 27 |
| 26th great-grandfather | XXVIII | 28 |
| 3rd cousin 26 times removed | XXXIV | 30 |
| 3rd cousin 29 times removed | XXXVII | 33 |
| Montgomerie, John Douglas | 20th great-grandfather | XXII | 22 |
| 21st great-grandfather | XXIII | 23 |
| 1st cousin 19 times removed | XXIII | 21 |