| Husband | Wife | Marriage date | Relationship ending status |
|---|
| Edmund Postlethwait | Sarah A. Unknown | | |
| Emanuel Hoover Postlethwait | Elizabeth Buckalew | Unknown | |
| Emanuel Hoover Postlethwait | Eve Shreve | Abt. 1865 | |
| Errol Flynn Postlethwait | Jane Jo Walters | Private | |
| Francis Postlethwait | Thelma Pearl Yoho | Unknown | |
| Francis Benton Postlethwait | Trena Morris | Unknown | |
| Franklin A. Postlethwait | Mary Etta Mason | June 1908 | |
| Franklin Neil Postlethwait | Marguerite Lorethia Jenkins | Private | |
| Gabriel Jobe Postlethwait | Hannah Rush | June 1863 | |
| Gabriel Jobe Postlethwait | Hannah Rush | Unknown | |
| George B. Postlethwait | Ellen Marshall | January 18, 1886 | |
| George Washington Postlethwait | Mary A. Gilbert | December 10, 1881 | |
| George Washington Postlethwait | Ruhama Sarah Or Susan Woods | December 16, 1842 | |
| Henry Edward Postlethwait | Lola [Postlethwait] | Private | |
| Henry Edward Postlethwait | Lola Unknown | | |
| Isaac Postlethwait | Sarah ??? | Unknown | |
| Isaac Postlethwait | Agnes Cain | January 1852 | |
| Isaac Postlethwait | Sarah Unknown | | |
| Isaac Luther Postlethwait | Lenora J. Briggs | March 28, 1893 | |
| J. Everett Postlethwait | Opal Morris | Unknown | |
| James Buchanan Postlethwait | Arminia [Postlethwait] | Unknown | |
| James Buchanan Postlethwait | Arminia Unknown | | |
| James Mcdonald Postlethwait | Elsie May Goodall | Unknown | |
| Jeremiah Postlethwait | Elizabeth [Postlethwait] | Unknown | |
| Jeremiah Postlethwait | Elizabeth Unknown | | |
| Jesse Postlethwait | Clara Francis Liston | January 06, 1911 | |
| John Postlethwait | Elizabeth Ann Dulaney | Abt. 1868 | |
| John Postlethwait | Susannah Irvin | Abt. 1774 | |
| John Postlethwait | Amanda Ellen Richmond | May 19, 1887 | |
| John Postlethwait | Sarah Ross | July 18, 1793 | |
| John Postlethwait | Mary Sarah Scott | Unknown | |
| John Postlethwait | Hannah Wright | Abt. 1759 | |
| John Keith Postlethwait | Elizabeth Pyles | November 1871 | |
| John L. Postlethwait | Elizabeth Moore | January 04, 1890 | |
| John Lawerence Postlethwait | Mary Jane Vandine | November 1893 | |
| John Luther Postlethwait | Wilda Jean Dunham | Private | |
| John Newton Postlethwait | Mary Caroline Rush | Unknown | |
| John Thomas Postlethwait | Delphia Frances Haines | May 1914 | |
| Joseph Postlethwait | Barbara Ellen Cain | January 14, 1855 | |
| Joseph Postlethwait | Mary Margaret Higgins | April 28, 1886 | |
| Joseph Rose Postlethwait | Mary Wilkins | Abt. 1795 | |
| Justus G. F. Postlethwait | Mary Martha Mccullough | | |
| Lawerence Luster Postlethwait | Helen Elizabeth Nay | Private | |
| Lemuel Postlethwait | Jane Myers | January 01, 1873 | |
| Leonard Jefferson Postlethwait | Sarah E. Calvert | July 05, 1887 | |
| Leslie Burl Postlethwait | Ruth Spencer | November 24, 1928 | |
| Leslie Dewayne Postlethwait | Lisa Yvonne Collier | Private | |
| Lewis Wetzel Postlethwait | Zerilda Postlethwait | March 16, 1878 | |
| Living Postlethwait | Mary Eunice Goddard | Private | |
| Lynn Postlethwait | Jana ??? | Private | |