| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Bodulgate, John | 22nd great-grandfather | XXIV | 24 |
| Boehnlein, Bette Charlotte | Wife of the 8th cousin | | |
| Bohmer, Anna Barbara Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Anna Margaret Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Anna Maria Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Catharine Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Heinrich Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Johann Adam Haas | Husband of the 5th great-grandaunt | | |
| Bohmer, Johannes Adam Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Maria Elizabeth Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Michael Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Phillip Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohmer, Valentine Seiwell | 1st cousin 6 times removed | X | 8 |
| Bohun, Ellen | 29th great-grandmother | XXXI | 31 |
| Bohun, Honfroi Or Humphrey | 31st great-grandfather | XXXIII | 33 |
| Bohun, Humphrey Of Taterford | 30th great-grandfather | XXXII | 32 |
| Bolebec, Osbern | 35th great-grandfather | XXXVII | 37 |
| 36th great-grandfather | XXXVIII | 38 |
| Bolebec, Walter | 36th great-grandfather | XXXVIII | 38 |
| 37th great-grandfather | XXXIX | 39 |
| Bolebec, Walter Osbern Crepon | 34th great-grandfather | XXXVI | 36 |
| 35th great-grandfather | XXXVII | 37 |
| Bonkyl, Alexander | 22nd great-grandfather | XXIV | 24 |
| Bonkyl, Margaret | 21st great-grandmother | XXIII | 23 |
| Wife of the 21st great-granduncle | | |
| Wife of the 22nd great-granduncle | | |
| Wife of the 23rd great-granduncle | | |
| Wife of the 24th great-granduncle | | |
| Wife of the 1st cousin 24 times removed | | |
| Wife of the 1st cousin 25 times removed | | |
| Wife of the 1st cousin 26 times removed | | |
| Wife of the 1st cousin 27 times removed | | |
| Wife of the 1st cousin 28 times removed | | |
| Wife of the 1st cousin 29 times removed | | |
| Wife of the 4th cousin 24 times removed | | |
| Wife of the 4th cousin 25 times removed | | |
| Wife of the 4th cousin 26 times removed | | |
| Wife of the 4th cousin 27 times removed | | |
| Wife of the 4th cousin 28 times removed | | |
| Bonner, Sarah | 11th great-grandmother | XIII | 13 |
| Book, Abraham Howry | 4th great-granduncle | VIII | 7 |
| 2nd cousin 6 times removed | XII | 9 |
| 3rd cousin 6 times removed | XIV | 10 |
| 8th cousin 4 times removed | XXII | 13 |
| Book, Adam Hoak | 5th great-granduncle | IX | 8 |
| Book, Catharine Howry | 4th great-grandaunt | VIII | 7 |
| 2nd cousin 6 times removed | XII | 9 |
| 3rd cousin 6 times removed | XIV | 10 |
| 8th cousin 4 times removed | XXII | 13 |
| Book, Catharine Saltzer | 6th great-grandaunt | X | 9 |