| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 34th great-grandmother | XXXVI | 36 |
| Gessler, Mary | Wife of the 2nd cousin 4 times removed | | |
| Giffard, Alice Douglas | 20th great-grandmother | XXII | 22 |
| 21st great-grandaunt | XXV | 24 |
| 2nd cousin 20 times removed | XXVI | 23 |
| 2nd cousin 22 times removed | XXVIII | 25 |
| 3rd cousin 20 times removed | XXVIII | 24 |
| 2nd cousin 23 times removed | XXIX | 26 |
| 3rd cousin 21 times removed | XXIX | 25 |
| 3rd cousin 22 times removed | XXX | 26 |
| 3rd cousin 23 times removed | XXXI | 27 |
| 4th cousin 21 times removed | XXXI | 26 |
| 4th cousin 22 times removed | XXXII | 27 |
| 4th cousin 23 times removed | XXXIII | 28 |
| 4th cousin 24 times removed | XXXIV | 29 |
| 4th cousin 25 times removed | XXXV | 30 |
| 4th cousin 26 times removed | XXXVI | 31 |
| 7th cousin 21 times removed | XXXVII | 29 |
| 7th cousin 22 times removed | XXXVIII | 30 |
| 7th cousin 23 times removed | XXXIX | 31 |
| 7th cousin 24 times removed | XL | 32 |
| 7th cousin 25 times removed | XLI | 33 |
| Gifford, Ada | 24th great-grandmother | XXVI | 26 |
| Wife of the 5th cousin 25 times removed | | |
| Wife of the half 4th cousin 28 times removed | | |
| Wife of the 5th cousin 28 times removed | | |
| Wife of the 6th cousin 27 times removed | | |
| Gifford, Adelaide Fleitel | 32nd great-grandaunt | XXXVI | 35 |
| 33rd great-grandaunt | XXXVII | 36 |
| Gifford, Hugh Morham | 21st great-grandfather | XXIII | 23 |
| 22nd great-grandfather | XXIV | 24 |
| Husband of the 1st cousin 21 times removed | | |
| Husband of the 1st cousin 23 times removed | | |
| Husband of the 2nd cousin 21 times removed | | |
| Husband of the 1st cousin 24 times removed | | |
| Husband of the 2nd cousin 22 times removed | | |
| Husband of the 2nd cousin 23 times removed | | |
| Husband of the 2nd cousin 24 times removed | | |
| Husband of the 3rd cousin 22 times removed | | |
| Husband of the 3rd cousin 23 times removed | | |
| Husband of the 3rd cousin 24 times removed | | |
| Husband of the 3rd cousin 25 times removed | | |
| Husband of the 3rd cousin 26 times removed | | |
| Husband of the 3rd cousin 27 times removed | | |
| Husband of the 6th cousin 22 times removed | | |
| Husband of the 6th cousin 23 times removed | | |
| Husband of the 6th cousin 24 times removed | | |
| Husband of the 6th cousin 25 times removed | | |
| Husband of the 6th cousin 26 times removed | | |
| Gifford, Hugh Of Yester Berkeley | 27th great-grandfather | XXIX | 29 |