| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Husband of the 12th cousin 20 times removed | | |
| Husband of the 17th cousin 10 times removed | | |
| Husband of the 16th cousin 13 times removed | | |
| Husband of the 14th cousin 17 times removed | | |
| Husband of the 13th cousin 19 times removed | | |
| Husband of the 15th cousin 15 times removed | | |
| Husband of the 17th cousin 11 times removed | | |
| Husband of the 16th cousin 14 times removed | | |
| Husband of the 15th cousin 16 times removed | | |
| Husband of the 14th cousin 18 times removed | | |
| Husband of the 17th cousin 12 times removed | | |
| Husband of the 18th cousin 10 times removed | | |
| Husband of the 13th cousin 20 times removed | | |
| Husband of the half 15th cousin 17 times removed | | |
| Husband of the 16th cousin 15 times removed | | |
| Husband of the 15th cousin 17 times removed | | |
| Husband of the 17th cousin 13 times removed | | |
| Husband of the 18th cousin 11 times removed | | |
| Husband of the 15th cousin 18 times removed | | |
| Husband of the 16th cousin 16 times removed | | |
| Husband of the 14th cousin 20 times removed | | |
| Husband of the 17th cousin 14 times removed | | |
| Husband of the 18th cousin 12 times removed | | |
| Husband of the 16th cousin 17 times removed | | |
| Husband of the 17th cousin 15 times removed | | |
| Husband of the 18th cousin 13 times removed | | |
| Husband of the 17th cousin 16 times removed | | |
| Husband of the 18th cousin 14 times removed | | |
| Ufford, Eve Valogines | 24th great-grandmother | XXVI | 26 |
| Wife of the half 6th cousin 24 times removed | | |
| Wife of the 7th cousin 23 times removed | | |
| Wife of the 7th cousin 25 times removed | | |
| Wife of the 7th cousin 26 times removed | | |
| Ufford, Ralph Valogines | 24th great-granduncle | XXVIII | 27 |
| Ufford, Robert I Peyton | 26th great-grandfather | XXVIII | 28 |
| Ufford, Robert II | 25th great-grandfather | XXVII | 27 |
| Ufford, Robert III Valogines | 24th great-granduncle | XXVIII | 27 |
| Ufford, Thomas | 25th great-granduncle | XXIX | 28 |
| Ulfsdotter, Gytha Svendsdatter | 30th great-grandaunt | XXXIV | 33 |
| Ulfsson, Asbjorn Svendsdatter | 30th great-granduncle | XXXIV | 33 |
| Ulfsson, Niels Svendsdatter | 30th great-granduncle | XXXIV | 33 |
| Ulfsson, Rognvald Svendsdatter | 30th great-granduncle | XXXIV | 33 |
| Ulfsson, Svend II Svendsdatter | 30th great-granduncle | XXXIV | 33 |
| Ulsiusson, Biorn Svendsdatter | 30th great-grandfather | XXXII | 32 |
| Umstadt, Nicholas | 9th great-grandfather | XI | 11 |
| Umstat, Anna Margareta | 7th great-grandaunt | XI | 10 |
| Umstat, Eve | 7th great-grandmother | IX | 9 |
| Umstat, Hans Peter Wasselet | 8th great-grandfather | X | 10 |
| Umstat, Johannes | 7th great-granduncle | XI | 10 |
| Valogines, Cecily | 25th great-grandmother | XXVII | 27 |