| Name | Relationship with Robert Williams | Civil | Canon |
| Williams, Owen | Great-granduncle | V | 4 |
| Williams, Patricia | 1st cousin once removed | V | 3 |
| Williams, Patrick F. | Great-grandfather | III | 3 |
| Williams, Paul Francis Patrick, Jr | 2nd cousin | VI | 3 |
| Williams, Paul Francis Patrick, Sr | 1st cousin once removed | V | 3 |
| Williams, Peggy Ann | Sister | II | 1 |
| Williams, Peter | 2nd great-grandfather | IV | 4 |
| Williams, Raymond A | 1st cousin once removed | V | 3 |
| Williams, Rick | Husband of the 2nd cousin once removed | | |
| Williams, Robert Emory | Self | | 0 |
| Williams, Robert Joseph | Father | I | 1 |
| Williams, Ronald | Husband of the 2nd cousin | | |
| Williams, Sarah | Great-grandaunt | V | 4 |
| Williams, Sarah Lynn | 2nd cousin | VI | 3 |
| Williams, Steve | 2nd cousin | VI | 3 |
| Williams, Steven | 2nd cousin once removed | VII | 4 |
| Williams, Thomas E | 2nd cousin | VI | 3 |
| Williams, Thomas Edward | Granduncle | IV | 3 |
| Williams, Tim | 2nd cousin | VI | 3 |
| Williams, Tracy | 2nd cousin | VI | 3 |
| Williams, Veronica M | 1st cousin once removed | V | 3 |
| Williams, Viola | 1st cousin once removed | V | 3 |
| Williams, Zack | 2nd cousin once removed | VII | 4 |
| Wilosky, Allan | 3rd cousin | VIII | 4 |
| Wilosky, Brian | 3rd cousin | VIII | 4 |
| Wilosky, John | Husband of the 2nd cousin once removed | | |
| Wilosky, Mark | 3rd cousin | VIII | 4 |
| Winkler, Alexia | 2nd cousin once removed | VII | 4 |
| Winkler, Gregory | 2nd cousin once removed | VII | 4 |
| Winkler, Greta Ann | 2nd cousin once removed | VII | 4 |
| Winkler, Michael | 2nd cousin once removed | VII | 4 |
| Winkler, Robert | Husband of the 1st cousin twice removed | | |
| Woeber, James | 2nd cousin | VI | 3 |
| Woeber, John David | 2nd cousin | VI | 3 |
| Woeber, Linda | 2nd cousin | VI | 3 |
| Woeber, Nicole | 2nd cousin once removed | VII | 4 |
| Woeber, Robert A, Jr | 2nd cousin | VI | 3 |
| Woeber, Robert, Sr | Husband of the 1st cousin once removed | | |
| Yambor, Bertha | Wife of the great-granduncle | | |
| Yee, Fred | Husband of the 2nd cousin once removed | | |
| Yee, Jacqueline | 3rd cousin | VIII | 4 |
| Yee, Ken | 3rd cousin | VIII | 4 |
| Yee, Michelle | 3rd cousin | VIII | 4 |
| Yetman, Russell | Husband of the 3rd cousin | | |
| Yetman, Russell | Husband of the 3rd cousin | | |
| York, Brian Joseph | Husband of the 2nd cousin once removed | | |
| Yuhas, Magdalene | Wife of the 1st cousin twice removed | | |
| Zahner, Margot | Wife of the 2nd cousin | | |
| Zahner, Silas Canzio Benevento - | 2nd cousin once removed | VII | 4 |
| Zaremba, Elizabeth | 2nd great-grandmother | IV | 4 |