| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Husband of the 15th cousin 12 times removed | | |
| Husband of the 14th cousin 15 times removed | | |
| Husband of the 15th cousin 13 times removed | | |
| Husband of the 13th cousin 17 times removed | | |
| Husband of the 14th cousin 16 times removed | | |
| Husband of the 15th cousin 14 times removed | | |
| Husband of the 13th cousin 18 times removed | | |
| Husband of the 14th cousin 17 times removed | | |
| Husband of the 15th cousin 15 times removed | | |
| Husband of the 13th cousin 19 times removed | | |
| Husband of the 14th cousin 18 times removed | | |
| Husband of the 15th cousin 16 times removed | | |
| Husband of the 15th cousin 17 times removed | | |
| Husband of the 14th cousin 19 times removed | | |
| Husband of the 15th cousin 18 times removed | | |
| Johnston, Gilbert | 23rd great-grandfather | XXV | 25 |
| Johnston, Gilbert | 21st great-grandfather | XXIII | 23 |
| Johnston, Gilbert Barclay | 13th great-granduncle | XVII | 16 |
| 3rd cousin 15 times removed | XXIII | 19 |
| 6th cousin 13 times removed | XXVII | 20 |
| 6th cousin 14 times removed | XXVIII | 21 |
| Half 7th cousin 13 times removed | XXIX | 21 |
| 6th cousin 15 times removed | XXIX | 22 |
| 5th cousin 17 times removed | XXIX | 23 |
| 7th cousin 14 times removed | XXX | 22 |
| Half 5th cousin 18 times removed | XXX | 24 |
| Half 6th cousin 16 times removed | XXX | 23 |
| 7th cousin 15 times removed | XXXI | 23 |
| Half 7th cousin 15 times removed | XXXI | 23 |
| 7th cousin 16 times removed | XXXII | 24 |
| Half 7th cousin 16 times removed | XXXII | 24 |
| 8th cousin 14 times removed | XXXII | 23 |
| 8th cousin 15 times removed | XXXIII | 24 |
| Half 8th cousin 15 times removed | XXXIII | 24 |
| 7th cousin 17 times removed | XXXIII | 25 |
| 9th cousin 14 times removed | XXXIV | 24 |
| 8th cousin 16 times removed | XXXIV | 25 |
| Half 8th cousin 16 times removed | XXXIV | 25 |
| 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 |