| Husband | Wife | Marriage date | Relationship ending status |
|---|
| Martin Van Buren Postlethwait | Sarah Coen | April 1862 | |
| Martin Van Buren Postlethwait | ??? Cohan | Unknown | |
| Martin Van Buren Postlethwait | Unknown Cohan | | |
| Martin Van Buren Postlethwait | Leona Hartley | Private | |
| Marvin Postlethwait | Bessie Furbee | Private | |
| Melvin Postlethwait | May Butler | Private | |
| Nelson R. Postlethwait | Matilda King | December 25, 1896 | |
| Nelson Sylvester Postlethwait | Margaret A. Richmond | April 1889 | |
| Peter Postlethwait | Harriet Adeline Coen | September 05, 1879 | |
| Presley M. Postlethwait | Safaria Catherine Richmond | April 1889 | |
| Prestley M. Postlethwait | Safrine Richmond | | |
| Ralph w. Postlethwait | Alice Douglas | April 15, 1898 | |
| Richard Postlethwait | Sarah Carr | July 28, 1803 | |
| Richard J. Postlethwait | Malinda Higginbotham | February 17, 1877 | |
| Richard Luther Postlethwait | Merle Smith | Private | |
| RICHARD NELSON POSTLETHWAIT | LYDIA HOLLIS | September 1809 | |
| Richard Nelson Postlethwait II | Catherine Miranda Furbee | August 15, 1837 | |
| Richard Nelson Postlethwait III | Abby Higginbotham | December 1877 | |
| Samuel Postlethwait | Ann Dunbar | May 09, 1805 | |
| Samuel Postlethwait | Sarah Mcelvaine | Unknown | |
| Samuel Postlethwait | Matilda Rose | October 11, 1760 | |
| Samuel L. Postlethwait | Margaret Goddard | March 1898 | |
| Samuel L. Postlethwait | Jane Merimer Gorby | Unknown | |
| Samuel Noel Postlethwait | Madelyn Cover | Private | |
| Samuel Wesley Postlethwait | Mary Ann Huff | Unknown | |
| Solomon Seymore Postlethwait | Mary Ann Sidell | Private | |
| Thomas Beeks Postlethwait | Susannah Coen | Abt. 1850 | |
| Thomas Beeks Postlethwait | Susannah Coen | 1850 | |
| Thomas Irvin Postlethwait | Mary Drake | April 01, 1802 | |
| Thomas Jefferson Jackson Postlethwait | Mazelma Arabella Lemasters | July 27, 1892 | |
| Vincent Linzy Postlethwait | Blanche Morris | February 28, 1909 | |
| Walter Postlethwait | Cora Mae Leek | Unknown | |
| Willard Dewayne Postlethwait | Neva Jean Baker | Private | |
| WILLIAM POSTLETHWAIT | HANNAH [POSTLETHWAIT] | Abt. 1748 | |
| William Postlethwait | Elizabeth Baker | 1809 | |
| William Postlethwait | Elizabeth Unknown | Abt. 1810 | |
| William Postlethwait | Eleanor Wilson | July 11, 1842 | |
| William Postlethwait | Eleanor Wilson | July 11, 1842 | |
| William Baker Postlethwait | Sarah Dulaney | Unknown | |
| William Benton Postlethwait | Lavica Wilely | May 29, 1891 | |
| William Benton Postlethwait | Lavica Willey | May 29, 1891 | |
| William Howard Postlethwait | Eva Jane Bowen | Private | |
| William Thomas Postlethwait | Martha E. Morris | November 28, 1917 | |
| Abram Osburne Postlethwaite | Rebecca Ann Swiney | July 18, 1909 | |
| Absalom Benjamin Franklin Postlethwaite | Sarah Jane Allen | December 29, 1859 | |
| Absalom Benjamin Franklin Postlethwaite | Mary Ann Little | January 10, 1856 | |
| Charles Edward Postlethwaite | Lulu Frances Swiger | August 25, 1910 | |
| Forest Franklin Postlethwaite | Nettie Louella Koch | Private | |
| GEORGE POSTLETHWAITE | ??? [POSTLETHWAITE] | Unknown | |
| GEORGE POSTLETHWAITE | UNKNOWN | | |