| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 13th cousin 19 times removed | XLVII | 33 |
| 11th cousin 23 times removed | XLVII | 35 |
| Stewart, Margaret Douglas | 23rd great-grandmother | XXV | 25 |
| 24th great-grandmother | XXVI | 26 |
| 22nd great-grandaunt | XXVI | 25 |
| 25th great-grandmother | XXVII | 27 |
| 23rd great-grandaunt | XXVII | 26 |
| 26th great-grandmother | XXVIII | 28 |
| 24th great-grandaunt | XXVIII | 27 |
| 27th great-grandmother | XXIX | 29 |
| 25th great-grandaunt | XXIX | 28 |
| 28th great-grandmother | XXX | 30 |
| 3rd cousin 25 times removed | XXXIII | 29 |
| 3rd cousin 26 times removed | XXXIV | 30 |
| 3rd cousin 27 times removed | XXXV | 31 |
| 3rd cousin 28 times removed | XXXVI | 32 |
| 3rd cousin 29 times removed | XXXVII | 33 |
| Stewart, Margaret Montgomery | 15th great-grandaunt | XIX | 18 |
| 5th cousin 15 times removed | XXVII | 21 |
| Half 5th cousin 15 times removed | XXVII | 21 |
| 4th cousin 17 times removed | XXVII | 22 |
| 4th cousin 18 times removed | XXVIII | 23 |
| 5th cousin 16 times removed | XXVIII | 22 |
| 6th cousin 14 times removed | XXVIII | 21 |
| 7th cousin 13 times removed | XXIX | 21 |
| 6th cousin 15 times removed | XXIX | 22 |
| 4th cousin 19 times removed | XXIX | 24 |
| Half 5th cousin 17 times removed | XXIX | 23 |
| Half 6th cousin 15 times removed | XXIX | 22 |
| 5th cousin 18 times removed | XXX | 24 |
| Half 6th cousin 16 times removed | XXX | 23 |
| 7th cousin 14 times removed | XXX | 22 |
| Half 5th cousin 18 times removed | XXX | 24 |
| 4th cousin 20 times removed | XXX | 25 |
| Half 7th cousin 14 times removed | XXX | 22 |
| Half 7th cousin 15 times removed | XXXI | 23 |
| 8th cousin 13 times removed | XXXI | 22 |
| Half 5th cousin 19 times removed | XXXI | 25 |
| 4th cousin 21 times removed | XXXI | 26 |
| 6th cousin 17 times removed | XXXI | 24 |
| Half 6th cousin 17 times removed | XXXI | 24 |
| 7th cousin 15 times removed | XXXI | 23 |
| 6th cousin 18 times removed | XXXII | 25 |
| 7th cousin 16 times removed | XXXII | 24 |
| Half 6th cousin 18 times removed | XXXII | 25 |
| Half 7th cousin 16 times removed | XXXII | 24 |
| 7th cousin 17 times removed | XXXIII | 25 |
| 6th cousin 19 times removed | XXXIII | 26 |
| 8th cousin 15 times removed | XXXIII | 24 |
| Half 7th cousin 17 times removed | XXXIII | 25 |