| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Calthorpe, John Mawtley | 22nd great-grandfather | XXIV | 24 |
| Calthorpe, Mary Wythe | 21st great-grandmother | XXIII | 23 |
| Wife of the half 9th cousin 21 times removed | | |
| Wife of the 10th cousin 20 times removed | | |
| Wife of the 8th cousin 25 times removed | | |
| Wife of the 10th cousin 21 times removed | | |
| Wife of the 10th cousin 22 times removed | | |
| Wife of the 10th cousin 23 times removed | | |
| Calthorpe, Oliver | 24th great-grandfather | XXVI | 26 |
| Calthorpe, Walter | 25th great-grandfather | XXVII | 27 |
| Calthorpe, William | 26th great-grandfather | XXVIII | 28 |
| Calthorpe, William Bacon | 23rd great-grandfather | XXV | 25 |
| Calthorpe, William Wythe | 21st great-granduncle | XXV | 24 |
| Cameron, Jean | 21st great-grandaunt | XXV | 24 |
| Cameron, John Of Ballegarno | 22nd great-grandfather | XXIV | 24 |
| Cameron, Margaret | 21st great-grandmother | XXIII | 23 |
| Cameron, Marion | 20th great-grandmother | XXII | 22 |
| Wife of the 1st cousin 22 times removed | | |
| Wife of the 1st cousin 23 times removed | | |
| Wife of the 1st cousin 24 times removed | | |
| Wife of the 1st cousin 25 times removed | | |
| Wife of the 2nd cousin 23 times removed | | |
| Wife of the 2nd cousin 24 times removed | | |
| Wife of the 2nd cousin 25 times removed | | |
| Wife of the 2nd cousin 26 times removed | | |
| Wife of the 2nd cousin 27 times removed | | |
| Wife of the 2nd cousin 28 times removed | | |
| Wife of the 5th cousin 23 times removed | | |
| Wife of the 5th cousin 24 times removed | | |
| Wife of the 5th cousin 25 times removed | | |
| Wife of the 5th cousin 26 times removed | | |
| Wife of the 5th cousin 27 times removed | | |
| Cameron, Robert | 23rd great-grandfather | XXV | 25 |
| Campbell, Alicia Gillespic | 20th great-grandaunt | XXIV | 23 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| 3rd cousin 21 times removed | XXIX | 25 |
| 4th cousin 20 times removed | XXX | 25 |
| 3rd cousin 22 times removed | XXX | 26 |
| 4th cousin 21 times removed | XXXI | 26 |
| 4th cousin 22 times removed | XXXII | 27 |
| 6th cousin 19 times removed | XXXIII | 26 |
| 4th cousin 23 times removed | XXXIII | 28 |
| 6th cousin 20 times removed | XXXIV | 27 |
| 4th cousin 24 times removed | XXXIV | 29 |
| 6th cousin 21 times removed | XXXV | 28 |
| 4th cousin 25 times removed | XXXV | 30 |
| 6th cousin 22 times removed | XXXVI | 29 |
| 4th cousin 26 times removed | XXXVI | 31 |
| 6th cousin 23 times removed | XXXVII | 30 |
| 7th cousin 21 times removed | XXXVII | 29 |