| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 8th cousin 21 times removed | XXXIX | 30 |
| 9th cousin 20 times removed | XL | 30 |
| 10th cousin 18 times removed | XL | 29 |
| 8th cousin 22 times removed | XL | 31 |
| 10th cousin 19 times removed | XLI | 30 |
| 8th cousin 23 times removed | XLI | 32 |
| 12th cousin 15 times removed | XLI | 28 |
| 10th cousin 20 times removed | XLII | 31 |
| 8th cousin 24 times removed | XLII | 33 |
| 12th cousin 16 times removed | XLII | 29 |
| 10th cousin 21 times removed | XLIII | 32 |
| 12th cousin 17 times removed | XLIII | 30 |
| 12th cousin 18 times removed | XLIV | 31 |
| 11th cousin 20 times removed | XLIV | 32 |
| 10th cousin 22 times removed | XLIV | 33 |
| 12th cousin 19 times removed | XLV | 32 |
| 12th cousin 20 times removed | XLVI | 33 |
| 12th cousin 21 times removed | XLVII | 34 |
| Stewart, Alice Macrory | 21st great-grandaunt | XXV | 24 |
| 22nd great-grandaunt | XXVI | 25 |
| 23rd great-grandaunt | XXVII | 26 |
| 24th great-grandaunt | XXVIII | 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 |
| 1st cousin 29 times removed | XXXIII | 31 |
| 4th cousin 24 times removed | XXXIV | 29 |
| 4th cousin 25 times removed | XXXV | 30 |
| 4th cousin 26 times removed | XXXVI | 31 |
| 4th cousin 27 times removed | XXXVII | 32 |
| 4th cousin 28 times removed | XXXVIII | 33 |
| Stewart, Allan Of Cardonald 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 |