| Name | Relationship with Wendy Libby | Civil | Canon |
| Black, Martha Ingersoll | 7th cousin 3 times removed | XIX | 11 |
| Black, Mary Cornelia (Frisby) | 7th cousin 3 times removed | XIX | 11 |
| Black, Thomas Joshua (Frisby) | 7th cousin 3 times removed | XIX | 11 |
| Blaisdell, Abigail | 2nd cousin 7 times removed | XIII | 10 |
| Blaisdell, Daniel | 2nd cousin 7 times removed | XIII | 10 |
| Blaisdell, Ebenezer | Husband of the 1st cousin 8 times removed | | |
| Blaisdell, Ebenezer | 2nd cousin 7 times removed | XIII | 10 |
| Blaisdell, Ephraim | 2nd cousin 7 times removed | XIII | 10 |
| Blaisdell, James | 2nd cousin 7 times removed | XIII | 10 |
| Blaisdell, Joseph | 2nd cousin 7 times removed | XIII | 10 |
| Blaisdell, Mary | 2nd cousin 7 times removed | XIII | 10 |
| Blaisdell, Samuel | 2nd cousin 7 times removed | XIII | 10 |
| Blaisdell, Sarah | 2nd cousin 7 times removed | XIII | 10 |
| Blaney, Mary | Wife of the 2nd cousin 8 times removed | | |
| Blish, Joseph | Husband of the 4th cousin 5 times removed | | |
| Blottner, Frank | Husband of the 5th cousin 3 times removed | | |
| Blottner, Marilynn | 6th cousin twice removed | XVI | 9 |
| Blottner, Sarah Annette | 6th cousin twice removed | XVI | 9 |
| Board, Mary Eleanor | Wife of the 5th cousin 4 times removed | | |
| Bodfish | Husband of the 3rd cousin 5 times removed | | |
| Boggs, William N. | Husband of the 4th cousin 5 times removed | | |
| Bonfoey, Clara Isabella | Wife of the 5th cousin 3 times removed | | |
| Bordman, Hattie Estelle | 8th cousin twice removed | XX | 11 |
| Bordman, John | Husband of the 7th cousin 3 times removed | | |
| Bordman, John | 8th cousin twice removed | XX | 11 |
| Bostrum, Pearl P. | Wife of the granduncle | | |
| Bostwick, Mary Ann | Wife of the 5th cousin 4 times removed | | |
| Bostwick, Rosa Lea | Wife of the 5th cousin 3 times removed | | |
| Bouck, Cora | 7th cousin 3 times removed | XIX | 11 |
| Bouck, Elna | 7th cousin 3 times removed | XIX | 11 |
| Bouck, Lottie | 7th cousin 3 times removed | XIX | 11 |
| Bouck, Unknown | Husband of the 6th cousin 4 times removed | | |
| Bouck, Walter | 7th cousin 3 times removed | XIX | 11 |
| Bouck, Willard | 7th cousin 3 times removed | XIX | 11 |
| Boudet, Ann | Wife of the 2nd cousin 7 times removed | | |
| Bowditch, Elizabeth | 5th cousin 5 times removed | XVII | 11 |
| Bowditch, Habakkuk | 5th cousin 5 times removed | XVII | 11 |
| Bowditch, Habakuk | Husband of the 4th cousin 6 times removed | | |
| Bowditch, Hannah | Wife of the 4th cousin 6 times removed | | |
| Bowditch, Lois | 5th cousin 5 times removed | XVII | 11 |
| Bowditch, Mary | 5th cousin 5 times removed | XVII | 11 |
| Bowditch, Nathaniel | 5th cousin 5 times removed | XVII | 11 |
| Bowditch, Nathaniel | Husband of the 5th cousin 5 times removed | | |
| Bowditch, Samuel Ingersoll | 5th cousin 5 times removed | XVII | 11 |
| Bowditch, William | 5th cousin 5 times removed | XVII | 11 |
| Boyes, Samuel | Husband of the 2nd cousin 6 times removed | | |
| Bradshaw, Anna | Wife of the 1st cousin 7 times removed | | |
| Bragdon, Angus | 7th cousin 3 times removed | XIX | 11 |
| Bragdon, Edgar | 7th cousin 3 times removed | XIX | 11 |
| Bragdon, Levi | Husband of the 6th cousin 4 times removed | | |