| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Stewart, Walter Of Dalwinton Bonkyl | 20th great-granduncle | 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, William I | 25th great-grandfather | XXVII | 27 |
| Stewart, William Montgomery | 15th great-granduncle | XIX | 18 |
| 5th cousin 15 times removed | XXVII | 21 |
| Half 5th cousin 15 times removed | XXVII | 21 |
| 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 18 times removed | XXVIII | 23 |
| 5th cousin 16 times removed | XXVIII | 22 |
| 6th cousin 14 times removed | XXVIII | 21 |
| 7th cousin 13 times removed | XXIX | 21 |
| 6th cousin 15 times removed | XXIX | 22 |
| 4th cousin 19 times removed | XXIX | 24 |
| Half 5th cousin 17 times removed | XXIX | 23 |
| Half 6th cousin 15 times removed | XXIX | 22 |
| 5th cousin 18 times removed | XXX | 24 |
| Half 6th cousin 16 times removed | XXX | 23 |
| 7th cousin 14 times removed | XXX | 22 |
| Half 5th cousin 18 times removed | XXX | 24 |
| 4th cousin 20 times removed | XXX | 25 |
| Half 7th cousin 14 times removed | XXX | 22 |
| Half 7th cousin 15 times removed | XXXI | 23 |
| 8th cousin 13 times removed | XXXI | 22 |
| Half 5th cousin 19 times removed | XXXI | 25 |
| 4th cousin 21 times removed | XXXI | 26 |
| 6th cousin 17 times removed | XXXI | 24 |
| Half 6th cousin 17 times removed | XXXI | 24 |
| 7th cousin 15 times removed | XXXI | 23 |
| 6th cousin 18 times removed | XXXII | 25 |
| 7th cousin 16 times removed | XXXII | 24 |
| Half 6th cousin 18 times removed | XXXII | 25 |
| Half 7th cousin 16 times removed | XXXII | 24 |
| 7th cousin 17 times removed | XXXIII | 25 |
| 6th cousin 19 times removed | XXXIII | 26 |
| 8th cousin 15 times removed | XXXIII | 24 |
| Half 7th cousin 17 times removed | XXXIII | 25 |