| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Book, Michael Hoak | 5th great-granduncle | IX | 8 |
| Book, Samuel Saltzer | 6th great-granduncle | X | 9 |
| Book, Susanna Howry | 4th great-grandaunt | VIII | 7 |
| 2nd cousin 6 times removed | XII | 9 |
| 3rd cousin 6 times removed | XIV | 10 |
| 8th cousin 4 times removed | XXII | 13 |
| Borthwick, Filia | 21st great-grandmother | XXIII | 23 |
| 20th great-grandaunt | XXIV | 23 |
| Wife of the 2nd cousin 21 times removed | | |
| Wife of the 2nd cousin 22 times removed | | |
| Wife of the 2nd cousin 24 times removed | | |
| Wife of the 4th cousin 20 times removed | | |
| Wife of the 2nd cousin 25 times removed | | |
| Wife of the 4th cousin 21 times removed | | |
| Wife of the 2nd cousin 26 times removed | | |
| Wife of the 4th cousin 22 times removed | | |
| Wife of the 4th cousin 23 times removed | | |
| Wife of the 7th cousin 21 times removed | | |
| Wife of the 7th cousin 22 times removed | | |
| Wife of the 7th cousin 23 times removed | | |
| Wife of the 7th cousin 24 times removed | | |
| Wife of the 7th cousin 25 times removed | | |
| Borthwick, Janet | 18th great-grandmother | XX | 20 |
| 2nd cousin 21 times removed | XXVII | 24 |
| Wife of the half 2nd cousin 18 times removed | | |
| Wife of the 3rd cousin 18 times removed | | |
| Wife of the half 2nd cousin 21 times removed | | |
| Wife of the half 2nd cousin 22 times removed | | |
| Wife of the 5th cousin 19 times removed | | |
| Wife of the 6th cousin 17 times removed | | |
| Wife of the 6th cousin 18 times removed | | |
| Wife of the 5th cousin 21 times removed | | |
| Wife of the 6th cousin 19 times removed | | |
| Wife of the 7th cousin 17 times removed | | |
| Wife of the 6th cousin 20 times removed | | |
| Wife of the 8th cousin 16 times removed | | |
| Wife of the 8th cousin 17 times removed | | |
| Wife of the 8th cousin 18 times removed | | |
| Wife of the 7th cousin 21 times removed | | |
| Wife of the 8th cousin 19 times removed | | |
| Wife of the 7th cousin 22 times removed | | |
| Wife of the 7th cousin 23 times removed | | |
| Wife of the 10th cousin 17 times removed | | |
| Wife of the 10th cousin 18 times removed | | |
| Wife of the 11th cousin 17 times removed | | |
| Wife of the 10th cousin 19 times removed | | |
| Wife of the 11th cousin 18 times removed | | |
| Wife of the 10th cousin 20 times removed | | |
| Wife of the 11th cousin 19 times removed | | |
| Wife of the 10th cousin 21 times removed | | |