| Name | Birth date | Relationship with Floyd Williams |
|---|
| Terrill, Joseph | 1848 | 1st cousin 4 times removed |
| Terrill, Joshua W. | August 21, 1821 | 3rd great-granduncle |
| Terrill, Laura R. | March 16, 1856 | 1st cousin 4 times removed |
| Terrill, Lucie | Abt. 1800 | 1st cousin 5 times removed |
| Terrill, Lucy | Abt. 1800 | 1st cousin 5 times removed |
| Terrill, Lucy Lacy | August 6, 1783 | 4th great-grandaunt |
| Terrill, Margaret | August 18, 1790 | 3rd great-grandmother |
| Terrill, Mary | WFT Est. 1717-1739 | 5th great-grandaunt |
| Terrill, Mary | July 1, 1824 | 1st cousin 5 times removed |
| Terrill, Mary E. | June 26, 1844 | 1st cousin 4 times removed |
| Terrill, Mary Foster | June 12, 1766 | 4th great-grandaunt |
| Terrill, Milched | WFT Est. 1790-1816 | 3rd great-grandaunt |
| Terrill, Mildred | WFT Est. 1790-1816 | 3rd great-grandaunt |
| Terrill, Mollie | WFT Est. 1841-1862 | 1st cousin 4 times removed |
| Terrill, Nancy L. | 1843 | 1st cousin 4 times removed |
| Terrill, Nancy M. | June 22, 1781 | 4th great-grandaunt |
| Terrill, Penelope | WFT Est. 1790-1819 | 3rd great-grandaunt |
| Terrill, Rebecca | 1836 | 1st cousin 4 times removed |
| Terrill, Rebecca | 1848 | 1st cousin 4 times removed |
| Terrill, Reuben | WFT Est. 1790-1816 | 3rd great-granduncle |
| Terrill, Reuben W. | December 9, 1847 | 1st cousin 4 times removed |
| Terrill, Robert | September 19, 1697 | 6th great-grandfather |
| Terrill, Robert | 1729 | 5th great-granduncle |
| Terrill, Robert | April 3, 1777 | 4th great-granduncle |
| Terrill, Robert | Abt. 1809 | 3rd great-granduncle |
| Terrill, Robert W. | March 7, 1850 | 1st cousin 4 times removed |
| Terrill, Robert, Dr. | July 1, 1824 | 1st cousin 5 times removed |
| Terrill, Robert,Jr. | 1838 | 1st cousin 4 times removed |
| Terrill, Sarah | WFT Est. 1717-1739 | 5th great-grandaunt |
| Terrill, Sarah | January 4, 1772 | 4th great-grandaunt |
| Terrill, Sarah E. | June 7, 1846 | 1st cousin 4 times removed |
| Terrill, Simeon Q. | April 25, 1842 | 1st cousin 4 times removed |
| Terrill, Simon | 1848 | 1st cousin 4 times removed |
| Terrill, Stella Amelia | May 5, 1851 | 1st cousin 4 times removed |
| Terrill, Susan | April 25, 1842 | 1st cousin 4 times removed |
| Terrill, Thompson J. | January 5, 1854 | 1st cousin 4 times removed |
| Terrill, Timothy | Abt. 1656 | 7th great-grandfather |
| | | Half 23rd cousin 9 times removed |
| Terrill, Walter Hugh | Abt. 1860 | 1st cousin 4 times removed |
| Terrill, William | WFT Est. 1717-1739 | 5th great-granduncle |
| Terrill, William | July 9, 1804 | 3rd great-granduncle |
| Terrilll, Mary A. | 1832 | 1st cousin 4 times removed |
| The Great | WFT Est. 891-928 | 33rd great-grandfather |
| | | 1st cousin 36 times removed |
| | | 2nd cousin 36 times removed |
| Theodoret | WFT Est. 654-738 | 37th great-grandfather |
| Thibaud | Bef. 864 | 34th great-grandfather |
| Thomas I | WFT Est. 1137-1177 | 26th great-grandfather |
| Thomas, Albert M. | 1876 | Granduncle |
| Thomas, Alice | November 6, 1874 | Grandaunt |