| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Stewart, Isabel Bonkyl | 20th great-grandaunt | XXIV | 23 |
| 1st cousin 22 times removed | XXVI | 24 |
| 1st cousin 23 times removed | XXVII | 25 |
| 1st cousin 24 times removed | XXVIII | 26 |
| 1st cousin 25 times removed | XXIX | 27 |
| 2nd cousin 23 times removed | XXIX | 26 |
| 2nd cousin 24 times removed | XXX | 27 |
| 2nd cousin 25 times removed | XXXI | 28 |
| 2nd cousin 26 times removed | XXXII | 29 |
| 2nd cousin 27 times removed | XXXIII | 30 |
| 2nd cousin 28 times removed | XXXIV | 31 |
| 5th cousin 23 times removed | XXXV | 29 |
| 5th cousin 24 times removed | XXXVI | 30 |
| 5th cousin 25 times removed | XXXVII | 31 |
| 5th cousin 26 times removed | XXXVIII | 32 |
| 5th cousin 27 times removed | XXXIX | 33 |
| Stewart, Isabel Ross | 20th great-grandmother | XXII | 22 |
| Half 18th great-grandaunt | XXII | 21 |
| 20th great-grandaunt | XXIV | 23 |
| Half 20th great-grandaunt | XXIV | 23 |
| Half 21st great-grandaunt | XXV | 24 |
| Half 1st cousin 22 times removed | XXVI | 24 |
| Half 1st cousin 23 times removed | XXVII | 25 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| 3rd cousin 21 times removed | XXIX | 25 |
| 4th cousin 20 times removed | XXX | 25 |
| 3rd cousin 22 times removed | XXX | 26 |
| 4th cousin 21 times removed | XXXI | 26 |
| 3rd cousin 23 times removed | XXXI | 27 |
| 4th cousin 22 times removed | XXXII | 27 |
| 4th cousin 23 times removed | XXXIII | 28 |
| 4th cousin 24 times removed | XXXIV | 29 |
| 4th cousin 25 times removed | XXXV | 30 |
| 4th cousin 26 times removed | XXXVI | 31 |
| 7th cousin 21 times removed | XXXVII | 29 |
| 7th cousin 22 times removed | XXXVIII | 30 |
| 7th cousin 23 times removed | XXXIX | 31 |
| 7th cousin 24 times removed | XL | 32 |
| 7th cousin 25 times removed | XLI | 33 |
| Wife of the 18th great-granduncle | | |
| Wife of the half 21st great-granduncle | | |
| Wife of the half 1st cousin 21 times removed | | |
| Wife of the 3rd cousin 20 times removed | | |
| Wife of the 2nd cousin 22 times removed | | |
| Wife of the 2nd cousin 23 times removed | | |
| Wife of the 3rd cousin 21 times removed | | |
| Wife of the 3rd cousin 22 times removed | | |
| Wife of the 3rd cousin 23 times removed | | |
| Wife of the 4th cousin 21 times removed | | |
| Wife of the 4th cousin 22 times removed | | |