| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 17th cousin 12 times removed | XLVIII | 30 |
| 15th cousin 16 times removed | XLVIII | 32 |
| 16th cousin 15 times removed | XLIX | 32 |
| 16th cousin 17 times removed | LI | 34 |
| 17th cousin 15 times removed | LI | 33 |
| 15th cousin 19 times removed | LI | 35 |
| Stewart, John Douglas | 22nd great-granduncle | XXVI | 25 |
| 23rd great-granduncle | XXVII | 26 |
| 24th great-granduncle | XXVIII | 27 |
| 25th great-granduncle | XXIX | 28 |
| 26th great-granduncle | XXX | 29 |
| 27th great-granduncle | XXXI | 30 |
| 28th great-granduncle | XXXII | 31 |
| 3rd cousin 25 times removed | XXXIII | 29 |
| 3rd cousin 26 times removed | XXXIV | 30 |
| 3rd cousin 27 times removed | XXXV | 31 |
| 3rd cousin 28 times removed | XXXVI | 32 |
| 3rd cousin 29 times removed | XXXVII | 33 |
| Stewart, John I Of Lennox | 16th great-grandfather | XVIII | 18 |
| 3rd cousin 18 times removed | XXVI | 22 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| 3rd cousin 21 times removed | XXIX | 25 |
| 3rd cousin 22 times removed | XXX | 26 |
| 5th cousin 18 times removed | XXX | 24 |
| 5th cousin 19 times removed | XXXI | 25 |
| 6th cousin 17 times removed | XXXI | 24 |
| 6th cousin 18 times removed | XXXII | 25 |
| 5th cousin 20 times removed | XXXII | 26 |
| 7th cousin 16 times removed | XXXII | 24 |
| 5th cousin 21 times removed | XXXIII | 27 |
| 6th cousin 19 times removed | XXXIII | 26 |
| 7th cousin 17 times removed | XXXIII | 25 |
| 6th cousin 20 times removed | XXXIV | 27 |
| 8th cousin 16 times removed | XXXIV | 25 |
| 7th cousin 18 times removed | XXXIV | 26 |
| 7th cousin 19 times removed | XXXV | 27 |
| 10th cousin 13 times removed | XXXV | 24 |
| 8th cousin 17 times removed | XXXV | 26 |
| 6th cousin 21 times removed | XXXV | 28 |
| 8th cousin 18 times removed | XXXVI | 27 |
| 6th cousin 22 times removed | XXXVI | 29 |
| 10th cousin 15 times removed | XXXVII | 26 |
| 7th cousin 21 times removed | XXXVII | 29 |
| 8th cousin 19 times removed | XXXVII | 28 |
| 6th cousin 23 times removed | XXXVII | 30 |
| 10th cousin 16 times removed | XXXVIII | 27 |
| 7th cousin 22 times removed | XXXVIII | 30 |
| 11th cousin 14 times removed | XXXVIII | 26 |
| 8th cousin 20 times removed | XXXVIII | 29 |
| 6th cousin 24 times removed | XXXVIII | 31 |