| Name | Relationship with Natalie Seiwell | Civil | Canon |
| Yadon, Leander L. Capps | 4th cousin 4 times removed | XIV | 9 |
| Yadon, Mahala Pannebecker | 3rd cousin 5 times removed | XIII | 9 |
| Yadon, Margaret Pannebecker | 3rd cousin 5 times removed | XIII | 9 |
| Yadon, Mary "Polly" Pannebecker | 3rd cousin 5 times removed | XIII | 9 |
| Yadon, Mary M. Capps | 4th cousin 4 times removed | XIV | 9 |
| Yadon, Sarah Pannebecker | 3rd cousin 5 times removed | XIII | 9 |
| Yadon, Susan Pannebecker | 3rd cousin 5 times removed | XIII | 9 |
| Yadon, Thomas Pannebecker | 3rd cousin 5 times removed | XIII | 9 |
| Yadon, William Proctor Pannebecker | 3rd cousin 5 times removed | XIII | 9 |
| Yarborough, Mary | 7th great-grandmother | IX | 9 |
| 8th great-grandmother | X | 10 |
| 11th great-grandmother | XIII | 13 |
| 12th great-grandmother | XIV | 14 |
| Wife of the 8th great-granduncle | | |
| Wife of the 9th great-granduncle | | |
| Yarbrough, Ambrose | 8th great-grandfather | X | 10 |
| 9th great-grandfather | XI | 11 |
| 12th great-grandfather | XIV | 14 |
| 13th great-grandfather | XV | 15 |
| Yoder, Elizabeth Nice | Wife of the 4th cousin 4 times removed | | |
| Yohn, John | Husband of the 2nd cousin 6 times removed | | |
| Yohn, Sarah Pieters | 3rd cousin 5 times removed | XIII | 9 |
| Yonge, Joan Hawberke | 23rd great-grandmother | XXV | 25 |
| Yonge, Thomas | 24th great-grandfather | XXVI | 26 |
| Yost, John | Husband of the 4th great-grandaunt | | |
| Young, Caleb Hirst Simpson | 5th cousin 3 times removed | XV | 9 |
| Young, Daniel | Husband of the 4th cousin 4 times removed | | |
| Young, Howard | 6th cousin twice removed | XVI | 9 |
| Young, Jacob Weiner Simpson | 5th cousin 3 times removed | XV | 9 |
| Young, Jeremiah Simpson | 5th cousin 3 times removed | XV | 9 |
| Young, John Henry Simpson | 5th cousin 3 times removed | XV | 9 |
| Young, Mary Simpson | 5th cousin 3 times removed | XV | 9 |
| Zellner, Peter | Husband of the 2nd cousin 4 times removed | | |
| Zimmerman, Anna Morgert | 8th great-grandaunt | XII | 11 |
| 2nd cousin 12 times removed | XVIII | 15 |
| Zimmerman, Anna Thoenen | 10th great-grandaunt | XIV | 13 |
| Zimmerman, Barbara Morgert | 8th great-grandaunt | XII | 11 |
| 2nd cousin 12 times removed | XVIII | 15 |
| Zimmerman, Barbli | 11th great-grandaunt | XV | 14 |
| Zimmerman, Barbli Wenger | 9th great-grandaunt | XIII | 12 |
| 1st cousin 13 times removed | XVII | 15 |
| Zimmerman, Bendikt | 13th great-grandfather | XV | 15 |
| Zimmerman, Benedict Morgert | 8th great-granduncle | XII | 11 |
| 2nd cousin 12 times removed | XVIII | 15 |
| Zimmerman, Benedict Thoenen | 10th great-granduncle | XIV | 13 |
| Zimmerman, Benedikt | 11th great-grandfather | XIII | 13 |
| Zimmerman, Benedikt Wenger | 9th great-granduncle | XIII | 12 |
| 1st cousin 13 times removed | XVII | 15 |
| Zimmerman, Catherine Morgert | 8th great-grandaunt | XII | 11 |
| 2nd cousin 12 times removed | XVIII | 15 |