| Name | Relationship with Wendy Libby | Civil | Canon |
| Bragdon, Philip | 7th cousin 3 times removed | XIX | 11 |
| Brastrow, Sally | Wife of the 2nd cousin 6 times removed | | |
| Bray, Elizabeth | Wife of the 3rd cousin 7 times removed | | |
| Bray, Nellie | Wife of the 7th cousin twice removed | | |
| Brazier, Lydia A. | Wife of the 5th cousin 3 times removed | | |
| Brewer, Mary | Wife of the 1st cousin 8 times removed | | |
| Bridge, Eleanor | Wife of the 4th cousin 6 times removed | | |
| Brizee | Husband of the 2nd cousin 6 times removed | | |
| Brockett, Mary Ann | Wife of the 6th cousin 4 times removed | | |
| Brockway, Sarah Ann | Wife of the 6th cousin 4 times removed | | |
| Brook, Alex | Husband of the 5th cousin 3 times removed | | |
| Brooks, Alice | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Charles | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Charles | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Constance Amelia | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Francis | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Frederick | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Harriet | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Henry Josiah | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Mary | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Susan Ann | 4th cousin 3 times removed | XIII | 8 |
| Brooks, Theresa | 4th cousin 3 times removed | XIII | 8 |
| Brooks, William | 4th cousin 3 times removed | XIII | 8 |
| Brooks, William | Husband of the 3rd cousin 4 times removed | | |
| Broom, Esther | Wife of the 1st cousin 7 times removed | | |
| Broom, Rebecca | Wife of the 1st cousin 7 times removed | | |
| Brown | Husband of the 1st cousin 8 times removed | | |
| Brown, Edith Rogers | Wife of the 6th cousin 3 times removed | | |
| Brown, Emma Electa | 7th cousin 3 times removed | XIX | 11 |
| Brown, Eva Ingersoll | 8th cousin twice removed | XX | 11 |
| Brown, Frank Loren | 8th cousin twice removed | XX | 11 |
| Brown, Heman Nelson | 7th cousin 3 times removed | XIX | 11 |
| Brown, Herbert Jerome | 7th cousin 3 times removed | XIX | 11 |
| Brown, James R. | Husband of the 6th cousin twice removed | | |
| Brown, Jennette | Wife of the 4th cousin 4 times removed | | |
| Brown, Leon | 8th cousin twice removed | XX | 11 |
| Brown, Loren Williams | Husband of the 6th cousin 4 times removed | | |
| Brown, Morrell Elijah | 7th cousin 3 times removed | XIX | 11 |
| Brown, Robert Ingersoll | 8th cousin twice removed | XX | 11 |
| Brown, Sarah | 2nd cousin 7 times removed | XIII | 10 |
| Brown, Susannah | Wife of the 2nd cousin 5 times removed | | |
| Brown, Walston Hill | Husband of the 7th cousin 3 times removed | | |
| Bruce, Lewis | Husband of the 4th cousin 5 times removed | | |
| Bryson, Annie W. | Wife of the 7th cousin once removed | | |
| Buckel, Susannah | Wife of the 4th cousin 4 times removed | | |
| Bucknam, Everett White | 6th cousin 3 times removed | XVII | 10 |
| Bucknam, Frank Gilbert | 6th cousin 3 times removed | XVII | 10 |
| Bucknam, Gilbert L. | Husband of the 5th cousin 4 times removed | | |
| Bucknam, Lucy Ella | Wife of the 6th cousin 3 times removed | | |
| Bucknam, Mary Emma | 6th cousin 3 times removed | XVII | 10 |