| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 7th cousin 18 times removed | XXXIV | 26 |
| 9th cousin 15 times removed | XXXV | 25 |
| 8th cousin 17 times removed | XXXV | 26 |
| 10th cousin 13 times removed | XXXV | 24 |
| 9th cousin 16 times removed | XXXVI | 26 |
| 8th cousin 18 times removed | XXXVI | 27 |
| 10th cousin 14 times removed | XXXVI | 25 |
| 9th cousin 17 times removed | XXXVII | 27 |
| 11th cousin 13 times removed | XXXVII | 25 |
| 10th cousin 15 times removed | XXXVII | 26 |
| 9th cousin 18 times removed | XXXVIII | 28 |
| 10th cousin 16 times removed | XXXVIII | 27 |
| 11th cousin 14 times removed | XXXVIII | 26 |
| 8th cousin 20 times removed | XXXVIII | 29 |
| 9th cousin 19 times removed | XXXIX | 29 |
| 8th cousin 21 times removed | XXXIX | 30 |
| 11th cousin 15 times removed | XXXIX | 27 |
| 10th cousin 18 times removed | XL | 29 |
| 9th cousin 20 times removed | XL | 30 |
| 11th cousin 16 times removed | XL | 28 |
| 11th cousin 17 times removed | XLI | 29 |
| 9th cousin 21 times removed | XLI | 31 |
| 11th cousin 18 times removed | XLII | 30 |
| 12th cousin 16 times removed | XLII | 29 |
| 11th cousin 19 times removed | XLIII | 31 |
| 12th cousin 17 times removed | XLIII | 30 |
| 14th cousin 14 times removed | XLIV | 29 |
| 12th cousin 18 times removed | XLIV | 31 |
| 14th cousin 15 times removed | XLV | 30 |
| 12th cousin 19 times removed | XLV | 32 |
| 14th cousin 16 times removed | XLVI | 31 |
| 12th cousin 20 times removed | XLVI | 33 |
| 14th cousin 17 times removed | XLVII | 32 |
| 14th cousin 18 times removed | XLVIII | 33 |
| Johnston, Isabel Forbes | 11th great-grandaunt | XV | 14 |
| 4th cousin 14 times removed | XXIV | 19 |
| 5th cousin 13 times removed | XXV | 19 |
| 6th cousin 15 times removed | XXIX | 22 |
| 8th cousin 11 times removed | XXIX | 20 |
| 7th cousin 13 times removed | XXIX | 21 |
| 6th cousin 16 times removed | XXX | 23 |
| 7th cousin 14 times removed | XXX | 22 |
| 8th cousin 12 times removed | XXX | 21 |
| Half 7th cousin 15 times removed | XXXI | 23 |
| 8th cousin 13 times removed | XXXI | 22 |
| Half 9th cousin 11 times removed | XXXI | 21 |
| 7th cousin 15 times removed | XXXI | 23 |
| 7th cousin 16 times removed | XXXII | 24 |
| 9th cousin 12 times removed | XXXII | 22 |
| Half 8th cousin 14 times removed | XXXII | 23 |