| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Wife of the 3rd cousin 26 times removed | | |
| Wemyss, Isabel Erskine | 16th great-grandmother | XVIII | 18 |
| 1st cousin 20 times removed | XXIV | 22 |
| 2nd cousin 21 times removed | XXVII | 24 |
| 4th cousin 19 times removed | XXIX | 24 |
| 6th cousin 17 times removed | XXXI | 24 |
| 5th cousin 20 times removed | XXXII | 26 |
| 6th cousin 19 times removed | XXXIII | 26 |
| 6th cousin 20 times removed | XXXIV | 27 |
| 8th cousin 16 times removed | XXXIV | 25 |
| 6th cousin 21 times removed | XXXV | 28 |
| 8th cousin 20 times removed | XXXVIII | 29 |
| 8th cousin 21 times removed | XXXIX | 30 |
| 8th cousin 22 times removed | XL | 31 |
| 11th cousin 16 times removed | XL | 28 |
| 11th cousin 17 times removed | XLI | 29 |
| 11th cousin 18 times removed | XLII | 30 |
| 11th cousin 19 times removed | XLIII | 31 |
| 11th cousin 20 times removed | XLIV | 32 |
| 11th cousin 21 times removed | XLV | 33 |
| 11th cousin 22 times removed | XLVI | 34 |
| Wife of the 1st cousin 21 times removed | | |
| Wemyss, Isabell | 18th great-grandaunt | XXII | 21 |
| 4th cousin 19 times removed | XXIX | 24 |
| 3rd cousin 22 times removed | XXX | 26 |
| 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 |
| 6th cousin 22 times removed | XXXVI | 29 |
| 6th cousin 23 times removed | XXXVII | 30 |
| 6th cousin 24 times removed | XXXVIII | 31 |
| 9th cousin 18 times removed | XXXVIII | 28 |
| 9th cousin 19 times removed | XXXIX | 29 |
| 9th cousin 20 times removed | XL | 30 |
| 9th cousin 21 times removed | XLI | 31 |
| 9th cousin 22 times removed | XLII | 32 |
| 9th cousin 23 times removed | XLIII | 33 |
| 9th cousin 24 times removed | XLIV | 34 |
| Wemyss, John | 19th great-granduncle | XXIII | 22 |
| 2nd cousin 20 times removed | XXVI | 23 |
| 2nd cousin 22 times removed | XXVIII | 25 |
| Wemyss, John | 23rd great-grandfather | XXV | 25 |
| 24th great-grandfather | XXVI | 26 |
| 25th great-grandfather | XXVII | 27 |
| Wemyss, John | 17th great-grandfather | XIX | 19 |
| 5th cousin 18 times removed | XXX | 24 |
| 4th cousin 21 times removed | XXXI | 26 |
| 5th cousin 20 times removed | XXXII | 26 |
| 5th cousin 21 times removed | XXXIII | 27 |