| Name | Relationship with John Biggs | Civil | Canon |
|---|
| Tomazi, Braian Michael | 5th great-grandnephew | IX | 8 |
| Tomazi, Caroline Renni | 5th great-grandniece | IX | 8 |
| Tomazi, Edward | Husband of the 4th great-grandniece | | |
| Travis, Milas | Husband of the great-grandniece | | |
| Tripp, Cliff | Husband of the 3rd great-grandniece | | |
| Trout, Living | Wife of the 2nd great-grandnephew | | |
| Turk, Frankie Fern | Wife of the 1st cousin 3 times removed | | |
| Turner, Lee | Husband of the 2nd great-grandniece | | |
| Turner, Living | 3rd great-grandniece | VII | 6 |
| Turner, Living | 3rd great-grandnephew | VII | 6 |
| Turner, Living | 3rd great-grandniece | VII | 6 |
| Turner, Living | 4th great-grandniece | VIII | 7 |
| Turner, Living | Husband of the 3rd great-grandniece | | |
| Tweedy | Husband of the great-granddaughter | | |
| Tweedy, Fred | 2nd great-grandson | IV | 4 |
| | 2nd great-grandson of the wife | | |
| Tweedy, Inez | 2nd great-granddaughter | IV | 4 |
| | 2nd great-granddaughter of the wife | | |
| Tweedy, James F. | Husband of the great-granddaughter | | |
| Tweedy, Robert B. | 2nd great-grandson | IV | 4 |
| | 2nd great-grandson of the wife | | |
| Tweedy, Robert M. | Husband of the great-granddaughter | | |
| Tweedy, Roy | 2nd great-grandson | IV | 4 |
| | 2nd great-grandson of the wife | | |
| Tweedy, Ruby E. | 2nd great-granddaughter | IV | 4 |
| | 2nd great-granddaughter of the wife | | |
| Tweedy, Sarah P. | 2nd great-granddaughter | IV | 4 |
| | 2nd great-granddaughter of the wife | | |
| Tweedy, Walter B. | 2nd great-grandson | IV | 4 |
| | 2nd great-grandson of the wife | | |
| Tweedy, Walter R. | 2nd great-grandson | IV | 4 |
| | 2nd great-grandson of the wife | | |
| Tweety, Maerva | Wife of the great-grandson | | |
| Underwood, Adeline Addie | Wife of the half 4th cousin twice removed | | |
| Unknown | Wife of the 1st cousin 4 times removed | | |
| Unknown | Wife of the 1st cousin 4 times removed | | |
| Unknown, Living | Husband of the 1st cousin 5 times removed | | |
| Unknown, Living | 1st cousin 5 times removed | IX | 7 |
| Unknown, Living | 1st cousin 5 times removed | IX | 7 |
| Unknown, Living | Wife of the 1st cousin 4 times removed | | |
| Unknown, Living 1st Husband | Husband of the 1st cousin 4 times removed | | |
| Unknown, Living Spouse | Wife of the 4th great-grandnephew | | |
| Unknown, Living Spouse | Wife of the 3rd great-grandnephew | | |
| Unknown, Living Spouse | Wife of the 3rd great-grandnephew | | |
| Unknown, Living Spouse | Wife of the 5th great-grandnephew | | |
| Unknown, Living Spouse | Wife of the 1st cousin 4 times removed | | |
| Unknown, Sarah | 4th great-grandmother | VI | 6 |
| Unknown, Spouse | Wife of the 1st cousin twice removed | | |
| Unknown, Spouse | Wife of the 3rd great-grandson | | |
| Unknown, Spouse | Husband of the great-granddaughter | | |