| Name | Birth date | Death date |
|---|
| Postlethwait, Levina E. | Abt. 1876 | Unknown |
| Postlethwait, Levina E. | Unknown | Unknown |
| Postlethwait, Lewis Wetzel | March 06, 1858 | June 07, 1942 |
| Postlethwait, Linda Lee | Private | |
| Postlethwait, Linda Mae | Private | |
| Postlethwait, Living | Private | |
| Postlethwait, Lloyd | September 30, 1896 | November 26, 1901 |
| Postlethwait, Lloyd | Unknown | Unknown |
| Postlethwait, Lori Ann | Private | |
| Postlethwait, Lucy Bell | January 02, 1867 | Unknown |
| Postlethwait, Lucy Bell | November 02, 1867 | Unknown |
| Postlethwait, Lula Thelma | April 06, 1908 | January 12, 1964 |
| Postlethwait, Lydia | December 23, 1855 | December 05, 1949 |
| Postlethwait, Lydia | Abt. 1877 | Unknown |
| Postlethwait, Lydia Ann | 1825 | Abt. 1860 |
| Postlethwait, Lydia L. | | Unknown |
| Postlethwait, Lydia Zeraldia | April 29, 1892 | August 13, 1907 |
| Postlethwait, Lynn | Private | |
| Postlethwait, Mahala | December 22, 1815 | Unknown |
| Postlethwait, Marie | Private | |
| Postlethwait, Marinda Mae | April 06, 1887 | January 22, 1969 |
| Postlethwait, Marsha Yolette | Private | |
| Postlethwait, Martin Van Buren | 1843 | March 1903 |
| Postlethwait, Martin Van Buren | February 14, 1902 | Unknown |
| Postlethwait, Marvin | Private | |
| Postlethwait, Mary | May 22, 1806 | Unknown |
| Postlethwait, Mary Ann | Abt. 1820 | Unknown |
| Postlethwait, Mary B. | May 15, 1819 | Unknown |
| Postlethwait, Mary Druzilla | December 11, 1855 | November 15, 1942 |
| Postlethwait, Mary Etta | January 01, 1904 | 1986 |
| Postlethwait, Mary Jane | | Unknown |
| Postlethwait, Mary Malinda | Abt. 1879 | Unknown |
| Postlethwait, May | Private | |
| Postlethwait, Melinda | Abt. 1844 | Unknown |
| Postlethwait, Melvin | Unknown | Unknown |
| Postlethwait, Mindy Jo | Private | |
| Postlethwait, Minnie | Private | |
| Postlethwait, Minnie O. | Abt. 1891 | Unknown |
| Postlethwait, Molly Ann | Private | |
| Postlethwait, Myrtle | Unknown | Unknown |
| Postlethwait, Naomi Ruth | Private | |
| Postlethwait, Neil Holland | Private | |
| Postlethwait, Nelson | Abt. 1870 | Unknown |
| Postlethwait, Nelson | Abt. 1847 | Unknown |
| Postlethwait, Nelson R. | Abt. 1874 | Unknown |
| Postlethwait, Nelson Sylvester | May 1865 | April 1944 |
| Postlethwait, Nesta Dare | Private | |
| Postlethwait, Norma | Private | |
| Postlethwait, Norman | Private | |
| Postlethwait, Osgia | Unknown | Unknown |