| Spouse # 1 | Spouse # 2 | Date |
| Oakes | Mary Ann | Edwards | Lewis M | 06-18-1848 |
| Oakes | Nancy | Rayburn | Harrison | 10-28-1838 |
| Oaks | Elizabeth | Kezie | James | 07-12-1836 |
| Oaks | John | Shaver | Mary | 02-26-1818 |
| Oborn Or Osborn | Rebeckah | Denton | Andrew | 10-07-1819 |
| Odell | Joseph | Shipp | Sarah A E | 08-29-1850 |
| Okes | Sarah | Smith | Shelton W | 12-22-1839 |
| Oloughlin | Hiram | Patton | Rhody | 12-09-1830 |
| Oral | Nancy | Wilson | Nathan | 01-17-1841 |
| Orrell | Eliza | Hungate | Allen | 12-04-1845 |
| Orrell | Mary | Moore | William | 01-12-1843 |
| Orrell | Wade | Magill | Sarah | 01-20-1846 |
| Orton | Joshza | Farris | Susannah | 02-07-1830 |
| Osborn | Catharine | Sewell | Fletcher | 01-23-1845 |
| Osborn | Caty | Gray | William | 10-22-1816 |
| Osborn | David | Miller | Mary | 12-10-1829 |
| Osborn | Edith | Longsdale | George | 10-10-1849 |
| Osborn | Priscilla | Brooks | James H | 06-13-1844 |
| Osborn | William | Smith | Elender | 09-03-1817 |
| Osborn | William C | Lindley | Martha | 10-13-1844 |
| Osborn | William Thomas | Stone | Cynthia A | 06-06-1850 |
| Osborne | Elizabeth | Fulfer | John | 01-14-1817 |
| Osbourn | Mariann | Bredwell | James | 03-01-1835 |
| Osbourn | Rebecca | Pipher | Alanson | 03-10-1836 |
| Osbourn | Zeno | Miller | Elizabeth | 06-24-1837 |
| Osburn | Hannah | Moorman | Zachariah | 10-22-1835 |
| Osburn | Hannah | Moorman | Zachariah | 10-22-1835 |
| Oston | Eliza | Lewis | Adam | 10-15-1825 |
| Oston | Mariah | Elkins | Archibald | 08-16-1829 |
| Overbe | Patience | White | Henry | 08-20-1831 |
| Overbey | John | Lamb | Mary | 08-28-1845 |
| Overby | David | Atkins | Malinda | 03-11-1838 |
| Overby | David | Hungate | Abagail | 05-11-1850 |
| Overby | John | Wilkin | Mary | 01-09-1840 |
| Overby | Joseph M | Montgomery | Elizabeth | 09-06-1848 |
| Overby | Polly | Cunningham | John T | 08-17-1828 |
| Overby | Sarah | Snowden | Joseph | 05-28-1835 |
| Overby | William | Boswell | Milly | 08-10-1830 |
| Overlin | Jonathan H | Riley | Elizabeth | 01-13-1847 |
| Overlin | Martha D | Wells | Jesse | 09-27-1832 |
| Overlin | Ruth | Wells | Samuel | 03-06-1836 |
| Overlin | Sally | Wells | Nathan | 11-15-1832 |
| Overlin | William I | Riley | Ann R | 11-09-1837 |
| Overling | Eliza | Parks | Andrew F | 09-19-1824 |
| Overton | Celia | Williams | Jesse | 01-14-1826 |
| Overton | Polly | Parks | Samuel | 01-23-1823 |
| Owen | James S | Jones | Olif | 03-28-1846 |
| Owen | Thomas | Bedster | Elizabeth | 09-10-1836 |
| Owens | Elizabeth | Holsclaw | John B | 02-28-1819 |
| Owens | George W | Edwards | Nancy | 06-02-1846 |