| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Husband of the 30th cousin 3 times removed | | |
| Husband of the 31st cousin once removed | | |
| Husband of the 31st cousin twice removed | | |
| Husband of the 32nd cousin | | |
| Husband of the 32nd cousin once removed | | |
| Husband of the 31st cousin 3 times removed | | |
| Seiwell, John Elick Hug | Uncle | III | 2 |
| Seiwell, John Horlacher | 2nd great-grandfather | IV | 4 |
| Seiwell, John Michael Pennypacker | 4th great-granduncle | VIII | 7 |
| Seiwell, Jonas Keplinger | 1st cousin 5 times removed | IX | 7 |
| Seiwell, Jonas Mauck | 1st cousin 5 times removed | IX | 7 |
| Seiwell, Malinda Koenig | 2nd cousin 4 times removed | X | 7 |
| Seiwell, Maria Claton | 2nd cousin 4 times removed | X | 7 |
| Seiwell, Mary A. Claton | 2nd cousin 4 times removed | X | 7 |
| Seiwell, Mary Elmira | 2nd cousin 4 times removed | X | 7 |
| Seiwell, Mary Koenig | 2nd cousin 4 times removed | X | 7 |
| Seiwell, Michael Glass | 3rd great-granduncle | VII | 6 |
| Seiwell, Natalie Jayne Banks | Self | | 0 |
| 7th cousin once removed | XVII | 9 |
| 8th cousin | XVIII | 9 |
| 8th cousin once removed | XIX | 10 |
| Half 9th cousin | XX | 10 |
| 9th cousin | XX | 10 |
| 9th cousin once removed | XXI | 11 |
| 8th cousin 3 times removed | XXI | 12 |
| Half 9th cousin once removed | XXI | 11 |
| 8th cousin 4 times removed | XXII | 13 |
| 10th cousin | XXII | 11 |
| 9th cousin twice removed | XXII | 12 |
| 9th cousin 3 times removed | XXIII | 13 |
| 8th cousin 5 times removed | XXIII | 14 |
| 9th cousin 4 times removed | XXIV | 14 |
| 10th cousin 3 times removed | XXV | 14 |
| 10th cousin 4 times removed | XXVI | 15 |
| 11th cousin twice removed | XXVI | 14 |
| 11th cousin 3 times removed | XXVII | 15 |
| 13th cousin | XXVIII | 14 |
| 12th cousin twice removed | XXVIII | 15 |
| 17th cousin once removed | XXXVII | 19 |
| 18th cousin | XXXVIII | 19 |
| 18th cousin 3 times removed | XLI | 22 |
| 19th cousin twice removed | XLII | 22 |
| 19th cousin 3 times removed | XLIII | 23 |
| 20th cousin twice removed | XLIV | 23 |
| Half 20th cousin twice removed | XLIV | 23 |
| 21st cousin once removed | XLV | 23 |
| 20th cousin 3 times removed | XLV | 24 |
| Half 21st cousin once removed | XLV | 23 |
| Half 20th cousin 3 times removed | XLV | 24 |
| 22nd cousin | XLVI | 23 |