| Name | Birth date | Birth location | Death date | Spouse |
|---|---|---|---|---|
| William C. Posey | 1840 | Alabama | ||
| William Campbell Posey | July 5, 1846 | PHILADELPHIA | Felton, Hamilton Hannah | |
| William Campbell Posey | February 6, 1914 | RHODE ISLAND | ||
| William Churchill Posey | May 13, 1789 | Virginia | July 12, 1849 | Ann I |
| William Devanna Appleton Posey | 1847 | RANDOLPH CO., AL. | Wiles, Annie Elizabeth | |
| William Edward M Posey | Abt 1876 | Bef 1937 | Miller, Fannie | |
| William Edwin Posey | January 6, 1901 | Texas | Byrd, Belle Alene | |
| William Elgin Posey | May 22, 1800 | Maryland | December 31, 1874 | Posey, Ann Meek |
| William Elgin Posey | 1826 | MD. | Nelson, Elizabeth Ann | |
| William Francis Posey | Abt 1740 | Maryland | 1810-1820 | Mary |
| William G Posey | Abt 1880 | Alabama | ||
| William H Posey | Abt 1849 | Maryland | Baxter, Jane | |
| William H Posey | May 31, 1868 | Johnson Co, IOWA | ||
| William H. Posey | 1837 | INDIANA | ||
| William H. Posey | 1853 | MISSISSIPPI | ||
| William Hamilton Posey | 1835 | AL. | 1864 | |
| William Hamilton Posey | 1840-1858 | |||
| William Jackson Posey | February 5, 1858 | Tennessee | September 3, 1900 | Mary Palestine |
| William L. Posey | Abt 1864 | MARYLAND | ||
| William Lorenzo Posey | October 20, 1877 | MISSISSIPPI | December 13, 1939 | |
| William Morgan Posey | December 27, 1836 | INDIANA | March 1, 1904 | Smith, Mary Melinda |
| William Newton Posey | 1830 | AUTAUGA CO., AL. | Aft 1880 | Grooms, Adeline |
| William Otis Posey | 1847 | GEORGIA | ||
| William Pinckney Posey | November 4, 1814 | PENDLETON DIST., S.C. | 1842 | Fluker, Nancy M |
| William Pinckney Posey | 1836 | 1859 | ||
| William Powell Posey | July 31, 1817 | S.C. | October 25, 1893 | Lackey, Mary Elizabeth |
| William Rufus Posey | 1866 | |||
| William T Posey | Abt 1910 | TEXAS | Aft 1993 | |
| William Thornton Posey | February 1, 1808 | Kentucky | January 10, 1860 | Dixon, Eliza Jane |
| William Thornton Posey | October 3, 1871 | August 18, 1947 | Daisy Blanche | |
| William Thweatt Posey | February 11, 1850 | March 27, 1905 | ||
| William Uriah Posey | July 24, 1854 | TEXAS | September 19, 1870 | |
| William W Posey | 1837 | MD. | ||
| Williamson Posey | Abt 1805 | North Carolina | E. P. | |
| Williamson A Posey | 1841 | |||
| Willie Posey | Abt 1873 | MARYLAND | ||
| Willie Posey | 1873 | Alabama | ||
| Willie B. Posey | 1890-1910 | |||
| Winifred Posey | 1728 | MARYLAND | Aft August 1778 | Parsons, Thomas |
| Winifred Posey | Abt 1762 | MARYLAND | Abt 1822 | Shepherd, Robert |
| Winnie Lou Edna Posey | June 1, 1899 | MISSISSIPPI | November 18, 1988 | Ernest, Luther Leon |
| Wittington E. Posey | 1866 | COOSA CO., AL. | Bef 1946 | |
| Wright Posey | 1837 | GA. | ||
| Wyatt Cassell Posey | July 24, 1830 | BLOUNT CO., AL. | ||
| Yancey Anthony Posey | 1881 | WALKER CO., WINSTON CO., AL. | 1964 | |
| Zachariah Posey | Abt 1766 | Maryland | Abt 1805 | Hamilton, Elizabeth |
| Zachariah V. Posey | Abt 1815 | Maryland | Hayden, Jane C. | |
| Zella Posey | 1898 | Aft 1970 | Posey, W. Holden | |
| Zephaniah Posey | Mary | |||
| Zoe Posey | 1868 | AL. |