| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Wife of the 9th cousin 20 times removed | | |
| Wife of the 7th cousin 25 times removed | | |
| Wife of the 10th cousin 19 times removed | | |
| Wife of the 9th cousin 21 times removed | | |
| Wife of the 10th cousin 20 times removed | | |
| Wife of the 9th cousin 22 times removed | | |
| Wife of the 10th cousin 21 times removed | | |
| Wife of the 9th cousin 23 times removed | | |
| Wife of the 10th cousin 22 times removed | | |
| Sinclair, Elizabeth Haliburton | 19th great-grandaunt | XXIII | 22 |
| 4th cousin 19 times removed | XXIX | 24 |
| 5th cousin 18 times removed | XXX | 24 |
| 5th cousin 20 times removed | XXXII | 26 |
| 5th cousin 21 times removed | XXXIII | 27 |
| 7th cousin 17 times removed | XXXIII | 25 |
| 5th cousin 22 times removed | XXXIV | 28 |
| 7th cousin 21 times removed | XXXVII | 29 |
| 7th cousin 22 times removed | XXXVIII | 30 |
| 7th cousin 23 times removed | XXXIX | 31 |
| 10th cousin 17 times removed | XXXIX | 28 |
| 10th cousin 18 times removed | XL | 29 |
| 10th cousin 19 times removed | XLI | 30 |
| 10th cousin 20 times removed | XLII | 31 |
| 10th cousin 21 times removed | XLIII | 32 |
| 10th cousin 22 times removed | XLIV | 33 |
| 10th cousin 23 times removed | XLV | 34 |
| Sinclair, Henry | 25th great-grandfather | XXVII | 27 |
| 1st cousin 24 times removed | XXVIII | 26 |
| 1st cousin 25 times removed | XXIX | 27 |
| 1st cousin 26 times removed | XXX | 28 |
| 1st cousin 27 times removed | XXXI | 29 |
| 1st cousin 28 times removed | XXXII | 30 |
| 4th cousin 23 times removed | XXXIII | 28 |
| 4th cousin 24 times removed | XXXIV | 29 |
| 4th cousin 25 times removed | XXXV | 30 |
| 3rd cousin 28 times removed | XXXVI | 32 |
| 4th cousin 26 times removed | XXXVI | 31 |
| 4th cousin 27 times removed | XXXVII | 32 |
| 4th cousin 28 times removed | XXXVIII | 33 |
| 4th cousin 29 times removed | XXXIX | 34 |
| Husband of the 4th cousin 26 times removed | | |
| Sinclair, Henry Dunbar | 28th great-grandfather | XXX | 30 |
| Husband of the 29th great-grandaunt | | |
| Sinclair, Henry Of Orkney | 20th great-grandfather | XXII | 22 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| 4th cousin 19 times removed | XXIX | 24 |
| 4th cousin 21 times removed | XXXI | 26 |
| 4th cousin 22 times removed | XXXII | 27 |
| 6th cousin 18 times removed | XXXII | 25 |
| 4th cousin 23 times removed | XXXIII | 28 |