| Name | Relationship with Robert Williams | Civil | Canon |
| Arcuri, Raynold | Husband of the 2nd cousin once removed | | |
| Arcuri, Sue | 3rd cousin | VIII | 4 |
| Arnold, Samual | Husband of the 2nd cousin once removed | | |
| Arthur, Darcel | 2nd cousin | VI | 3 |
| Arthur, Diane | 2nd cousin | VI | 3 |
| Arthur, Jeff | 2nd cousin | VI | 3 |
| Arthur, Jennette | 1st cousin once removed | V | 3 |
| Arthur, Joseph Carroll | Husband of the grandaunt | | |
| Arthur, Joseph Carroll III | 2nd cousin | VI | 3 |
| Arthur, Joseph Carroll, Jr | 1st cousin once removed | V | 3 |
| Arthur, Laureen | 2nd cousin | VI | 3 |
| Arthur, Leah | 2nd cousin once removed | VII | 4 |
| Arthur, Lenora | 1st cousin once removed | V | 3 |
| Arthur, Mildred | 1st cousin once removed | V | 3 |
| Arthur, Randy | 2nd cousin | VI | 3 |
| Arthur, Scott | 2nd cousin | VI | 3 |
| Arthur, Shawna | 2nd cousin once removed | VII | 4 |
| Arthur, William D | 1st cousin once removed | V | 3 |
| Arthur, William D | 2nd cousin | VI | 3 |
| Baker, Eric | Husband of the 2nd cousin once removed | | |
| Ballock, John | Husband of the grandaunt | | |
| Ballock, Lacey | 2nd cousin once removed | VII | 4 |
| Ballock, Mariah | 2nd cousin once removed | VII | 4 |
| Ballock, Miranda | 2nd cousin once removed | VII | 4 |
| Ballock, William | Husband of the 2nd cousin | | |
| Balser, Joyce B | Wife of the 2nd cousin once removed | | |
| Bandrowsky, Stanley | Husband of the 2nd cousin | | |
| Bankes, Edgar | Husband of the 1st cousin twice removed | | |
| Bankes, Joseph | 2nd cousin once removed | VII | 4 |
| Bankes, Rosemarie | 2nd cousin once removed | VII | 4 |
| Bankes, William | 2nd cousin once removed | VII | 4 |
| Barb | 2nd cousin | VI | 3 |
| Barbara | Wife of the great-granduncle | | |
| Barber, Gene | Husband of the 1st cousin once removed | | |
| Barbera, Lisa | 3rd cousin | VIII | 4 |
| Barbera, Philip James | Husband of the 2nd cousin once removed | | |
| Barbera, Philip, Jr | 3rd cousin | VIII | 4 |
| Barilovits, Albert Frank | Husband of the 1st cousin once removed | | |
| Barilovits, Ellen Marie | 2nd cousin | VI | 3 |
| Barilovits, Stephen Joseph | 2nd cousin | VI | 3 |
| Barilovits, Susan Mary | 2nd cousin | VI | 3 |
| Barnard, Dion | 2nd cousin once removed | VII | 4 |
| Barnard, Donald | Husband of the 2nd cousin | | |
| Barnard, Salina | 2nd cousin once removed | VII | 4 |
| Barneswell, Mary Catherine | Wife of the 2nd cousin once removed | | |
| Barrett, Nancy | Wife of the 1st cousin once removed | | |
| Bartek, Shirley | Wife of the 2nd cousin | | |
| Baxter, Barbara | 2nd cousin | VI | 3 |
| Baxter, Kenneth | 2nd cousin | VI | 3 |
| Baxter, L David | 2nd cousin | VI | 3 |